灵茶山艾府.md

灵茶山艾府

Sliding Window

Fixed-length Window

1. https://leetcode.com/problems/maximum-number-of-vowels-in-a-substring-of-given-length/

2. https://leetcode.com/problems/maximum-average-subarray-i/

3. https://leetcode.com/problems/number-of-sub-arrays-of-size-k-and-average-greater-than-or-equal-to-threshold/

4. https://leetcode.com/problems/k-radius-subarray-averages/

5. https://leetcode.com/problems/minimum-recolors-to-get-k-consecutive-black-blocks/

6. https://leetcode.com/problems/grumpy-bookstore-owner/ +Mark

7. https://leetcode.com/problems/maximum-sum-of-almost-unique-subarray/

8. https://leetcode.com/problems/maximum-sum-of-distinct-subarrays-with-length-k/

9. https://leetcode.com/problems/maximum-points-you-can-obtain-from-cards/ +Mark

10. https://leetcode.com/problems/defuse-the-bomb/

11. https://leetcode.com/problems/diet-plan-performance/

12. https://leetcode.com/problems/find-k-length-substrings-with-no-repeated-characters/

13. https://www.lintcode.com/problem/distinct-numbers-in-each-subarray/

14. https://www.lintcode.com/problem/minimum-swaps-to-group-all-1s-together/

15. https://www.lintcode.com/problem/number-of-unique-flavors-remaining-after-sharing-k-candies/

16. https://leetcode.com/problems/check-if-a-string-contains-all-binary-codes-of-size-k/

17. https://leetcode.com/problems/minimum-swaps-to-group-all-1s-together-ii/

18. https://leetcode.com/problems/maximum-number-of-occurrences-of-a-substring/

19. https://leetcode.com/problems/sliding-subarray-beauty/ +Mark

20. https://leetcode.com/problems/reschedule-meetings-for-maximum-free-time-i/

21. https://leetcode.com/problems/minimum-number-of-flips-to-make-the-binary-string-alternating/ +Mark

22. https://leetcode.com/problems/permutation-in-string/

23. https://leetcode.com/problems/find-all-anagrams-in-a-string/

24. https://leetcode.com/problems/substring-with-concatenation-of-all-words/

25. https://leetcode.com/problems/find-substring-with-given-hash-value/ +Mark

26. https://leetcode.com/problems/count-complete-substrings/

27. https://leetcode.com/problems/binary-string-with-substrings-representing-1-to-n/

28. https://www.lintcode.com/problem/k-empty-slots/ +Mark

29. https://www.lintcode.com/problem/number-of-equal-count-substrings/

30. https://leetcode.com/problems/maximum-frequency-score-of-a-subarray/

31. https://leetcode.com/problems/find-the-k-beauty-of-a-number/

32. https://leetcode.com/problems/minimum-difference-between-highest-and-lowest-of-k-scores/

33. https://leetcode.com/problems/contains-duplicate-iii/ +Mark

[Variable-length Window]

34. https://leetcode.com/problems/longest-substring-without-repeating-characters/

35. https://leetcode.com/problems/maximum-length-substring-with-two-occurrences/

36. https://leetcode.com/problems/longest-subarray-of-1s-after-deleting-one-element/

37. https://leetcode.com/problems/get-equal-substrings-within-budget/

38. https://leetcode.com/problems/fruit-into-baskets/

39. https://leetcode.com/problems/maximum-erasure-value/

40. https://leetcode.com/problems/length-of-longest-subarray-with-at-most-k-frequency/

41. https://leetcode.com/problems/maximize-the-confusion-of-an-exam/ +Mark

42. https://leetcode.com/problems/max-consecutive-ones-iii/

43. https://leetcode.com/problems/minimum-operations-to-reduce-x-to-zero/

44. https://leetcode.com/problems/find-the-longest-semi-repetitive-substring/

45. https://leetcode.com/problems/maximum-beauty-of-an-array-after-applying-operation/ +Mark

• https://leetcode.com/problems/frequency-of-the-most-frequent-element/

• https://leetcode.com/problems/take-k-of-each-character-from-left-and-right/

• https://leetcode.com/problems/find-the-longest-equal-subarray/

• https://leetcode.com/problems/maximum-white-tiles-covered-by-a-carpet/

• https://leetcode.com/problems/maximum-fruits-harvested-after-at-most-k-steps/

• https://leetcode.com/problems/maximize-win-from-two-segments/

• https://leetcode.com/problems/minimum-number-of-operations-to-make-array-continuous/

• https://leetcode.com/problems/maximum-number-of-visible-points/

• https://leetcode.com/problems/length-of-the-longest-valid-substring/

• https://leetcode.com/problems/maximum-subarray-with-equal-products/

• https://leetcode.com/problems/apply-operations-to-maximize-frequency-score/

• https://leetcode.com/problems/moving-stones-until-consecutive-ii/

• https://leetcode.com/problems/maximum-coins-from-k-consecutive-bags/

• https://leetcode.com/problems/longest-substring-with-at-least-k-repeating-characters/

• https://leetcode.com/problems/longest-nice-substring/

• https://leetcode.com/problems/max-consecutive-ones-ii/

• https://leetcode.com/problems/longest-substring-with-at-most-two-distinct-characters/

• https://leetcode.com/problems/longest-substring-with-at-most-k-distinct-characters/

• https://leetcode.com/problems/minimum-size-subarray-sum/

• https://leetcode.com/problems/shortest-and-lexicographically-smallest-beautiful-string/

• https://leetcode.com/problems/replace-the-substring-for-balanced-string/

• https://leetcode.com/problems/minimum-size-subarray-in-infinite-array/

• https://leetcode.com/problems/minimum-window-substring/

• https://leetcode.com/problems/smallest-range-covering-elements-from-k-lists/

• https://leetcode.com/problems/number-of-substrings-containing-all-three-characters/

• https://leetcode.com/problems/count-subarrays-where-max-element-appears-at-least-k-times/

• https://leetcode.com/problems/count-substrings-with-k-frequency-characters-i/

• https://leetcode.com/problems/count-complete-subarrays-in-an-array/

• https://leetcode.com/problems/count-the-number-of-good-subarrays/

• https://leetcode.com/problems/count-substrings-that-can-be-rearranged-to-contain-a-string-ii/

• https://leetcode.com/problems/number-of-subarrays-having-even-product/

• https://leetcode.com/problems/subarray-product-less-than-k/

• https://leetcode.com/problems/count-substrings-that-satisfy-k-constraint-i/

• https://leetcode.com/problems/count-subarrays-with-score-less-than-k/

• https://leetcode.com/problems/continuous-subarrays/

• https://leetcode.com/problems/find-the-median-of-the-uniqueness-array/

• https://leetcode.com/problems/count-substrings-that-satisfy-k-constraint-ii/

• https://leetcode.com/problems/1GxJYY/

• https://leetcode.com/problems/count-substrings-without-repeating-character/

• https://leetcode.com/problems/binary-subarrays-with-sum/

• https://leetcode.com/problems/count-number-of-nice-subarrays/

• https://leetcode.com/problems/count-of-substrings-containing-every-vowel-and-k-consonants-ii/

• https://leetcode.com/problems/subarrays-with-k-different-integers/

• https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit/

• https://leetcode.com/problems/friends-of-appropriate-ages/

• https://leetcode.com/problems/longest-nice-subarray/

• https://leetcode.com/problems/swap-for-longest-repeated-character-substring/

• https://leetcode.com/problems/longest-repeating-character-replacement/

• https://leetcode.com/problems/find-all-anagrams-in-a-string/ +duplicate

• https://leetcode.com/problems/ways-to-split-array-into-three-subarrays/

• https://leetcode.com/problems/kth-smallest-subarray-sum/

• https://leetcode.com/problems/reverse-string/

• https://leetcode.com/problems/valid-palindrome/

• https://leetcode.com/problems/minimum-length-of-string-after-deleting-similar-ends/

• https://leetcode.com/problems/watering-plants-ii/

• https://leetcode.com/problems/squares-of-a-sorted-array/

• https://leetcode.com/problems/find-k-closest-elements/

• https://leetcode.com/problems/the-k-strongest-values-in-an-array/

• https://leetcode.com/problems/two-sum-ii-input-array-is-sorted/

• https://leetcode.com/problems/sum-of-square-numbers/

• https://leetcode.com/problems/count-pairs-whose-sum-is-less-than-target/

• https://leetcode.com/problems/4xy4Wx/

• https://leetcode.com/problems/3sum/

• https://leetcode.com/problems/3sum-closest/

• https://leetcode.com/problems/4sum/

• https://leetcode.com/problems/valid-triangle-number/

• https://leetcode.com/problems/number-of-ways-where-square-of-number-is-equal-to-product-of-two-numbers/

• https://leetcode.com/problems/3sum-with-multiplicity/

• https://leetcode.com/problems/bag-of-tokens/

• https://leetcode.com/problems/container-with-most-water/

• https://leetcode.com/problems/trapping-rain-water/

• https://leetcode.com/problems/split-two-strings-to-make-palindrome/

• https://leetcode.com/problems/number-of-subsequences-that-satisfy-the-given-sum-condition/

• https://leetcode.com/problems/count-pairs-of-nodes/

• https://leetcode.com/problems/two-sum-less-than-k/

• https://leetcode.com/problems/sort-transformed-array/

• https://leetcode.com/problems/merge-operations-to-turn-array-into-a-palindrome/

• https://leetcode.com/problems/3sum-smaller/

• https://leetcode.com/problems/shortest-subarray-to-be-removed-to-make-array-sorted/

• https://leetcode.com/problems/count-the-number-of-incremovable-subarrays-ii/

• https://leetcode.com/problems/recover-the-original-array/

• https://leetcode.com/problems/minimize-connected-groups-by-inserting-interval/

• https://leetcode.com/problems/shortest-unsorted-continuous-subarray/

• https://leetcode.com/problems/maximum-score-of-a-good-subarray/

• https://leetcode.com/problems/remove-element/

• https://leetcode.com/problems/remove-duplicates-from-sorted-array/

• https://leetcode.com/problems/remove-duplicates-from-sorted-array-ii/

• https://leetcode.com/problems/move-zeroes/

• https://leetcode.com/problems/sort-array-by-parity/

• https://leetcode.com/problems/sort-array-by-parity-ii/

• https://leetcode.com/problems/apply-operations-to-an-array/

• https://leetcode.com/problems/duplicate-zeros/

• https://leetcode.com/problems/minimum-common-value/

• https://leetcode.com/problems/merge-sorted-array/

• https://leetcode.com/problems/merge-two-2d-arrays-by-summing-values/

• https://leetcode.com/problems/2vYnGI/

• https://leetcode.com/problems/maximum-distance-between-a-pair-of-values/

• https://leetcode.com/problems/find-the-distance-value-between-two-arrays/

• https://leetcode.com/problems/long-pressed-name/

• https://leetcode.com/problems/expressive-words/

• https://leetcode.com/problems/move-pieces-to-obtain-a-string/

• https://leetcode.com/problems/swap-adjacent-in-lr-string/

• https://leetcode.com/problems/backspace-string-compare/

• https://leetcode.com/problems/interval-list-intersections/

• https://leetcode.com/problems/smallest-difference-lcci/

• https://leetcode.com/problems/get-the-maximum-score/

• https://leetcode.com/problems/shortest-word-distance-ii/

• https://leetcode.com/problems/maximum-coins-heroes-can-collect/

• https://leetcode.com/problems/meeting-scheduler/

• https://leetcode.com/problems/dot-product-of-two-sparse-vectors/

• https://leetcode.com/problems/product-of-two-run-length-encoded-arrays/

• https://leetcode.com/problems/is-subsequence/

• https://leetcode.com/problems/longest-word-in-dictionary-through-deleting/

• https://leetcode.com/problems/append-characters-to-string-to-make-subsequence/

• https://leetcode.com/problems/make-string-a-subsequence-using-cyclic-increments/

• https://leetcode.com/problems/camelcase-matching/

• https://leetcode.com/problems/find-the-integer-added-to-array-ii/

• https://leetcode.com/problems/longest-uncommon-subsequence-ii/

• https://leetcode.com/problems/maximum-number-of-removable-characters/

• https://leetcode.com/problems/subsequence-with-the-minimum-score/

• https://leetcode.com/problems/find-the-lexicographically-smallest-valid-sequence/

• https://leetcode.com/problems/number-of-arithmetic-triplets/

• https://leetcode.com/problems/count-the-number-of-fair-pairs/

• https://leetcode.com/problems/number-of-subarrays-with-bounded-maximum/

• https://leetcode.com/problems/count-subarrays-with-fixed-bounds/

• https://leetcode.com/problems/maximum-frequency-of-an-element-after-performing-operations-ii/

• https://leetcode.com/problems/intersection-of-three-sorted-arrays/

• https://leetcode.com/problems/consecutive-characters/

• https://leetcode.com/problems/longer-contiguous-segments-of-ones-than-zeros/

• https://leetcode.com/problems/length-of-the-longest-alphabetical-continuous-substring/

• https://leetcode.com/problems/delete-characters-to-make-fancy-string/

• https://leetcode.com/problems/longest-continuous-increasing-subsequence/

• https://leetcode.com/problems/longest-turbulent-subarray/

• https://leetcode.com/problems/number-of-smooth-descent-periods-of-a-stock/

• https://leetcode.com/problems/summary-ranges/

• https://leetcode.com/problems/longest-even-odd-subarray-with-threshold/ https://leetcode.com/problems/longest-even-odd-subarray-with-threshold/solutions/2528771/jiao-ni-yi-ci-xing-ba-dai-ma-xie-dui-on-zuspx/

• https://leetcode.com/problems/reduction-operations-to-make-the-array-elements-equal/

• https://leetcode.com/problems/longest-mountain-in-array/

• https://leetcode.com/problems/remove-colored-pieces-if-both-neighbors-are-the-same-color/

• https://leetcode.com/problems/count-number-of-homogenous-substrings/

• https://leetcode.com/problems/find-if-array-can-be-sorted/

• https://leetcode.com/problems/minimum-time-to-make-rope-colorful/

• https://leetcode.com/problems/longest-substring-of-all-vowels-in-order/

• https://leetcode.com/problems/longest-alternating-subarray/

• https://leetcode.com/problems/find-the-power-of-k-size-subarrays-ii/

• https://leetcode.com/problems/adjacent-increasing-subarrays-detection-ii/

• https://leetcode.com/problems/longest-strictly-increasing-or-strictly-decreasing-subarray/

• https://leetcode.com/problems/unique-substrings-in-wraparound-string/

• https://leetcode.com/problems/make-lexicographically-smallest-array-by-swapping-elements/

• https://leetcode.com/problems/find-score-of-an-array-after-marking-all-elements/

• https://leetcode.com/problems/count-strictly-increasing-subarrays/

• https://leetcode.com/problems/minimum-split-into-subarrays-with-gcd-greater-than-one/

• https://leetcode.com/problems/number-of-subarrays-having-even-product/ +duplicate

• https://leetcode.com/problems/linked-list-frequency/

Binary Search

• https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array/
• https://leetcode.com/problems/search-insert-position/
• https://leetcode.com/problems/binary-search/
• https://leetcode.com/problems/find-smallest-letter-greater-than-target/
• https://leetcode.com/problems/maximum-count-of-positive-integer-and-negative-integer/
• https://leetcode.com/problems/find-the-distance-value-between-two-arrays/ +duplicate
• https://leetcode.com/problems/successful-pairs-of-spells-and-potions/
• https://leetcode.com/problems/longest-subsequence-with-limited-sum/
• https://leetcode.com/problems/compare-strings-by-frequency-of-the-smallest-character/
• https://leetcode.com/problems/range-frequency-queries/
• https://leetcode.com/problems/count-the-number-of-fair-pairs/ +duplicate
• https://leetcode.com/problems/minimum-array-length-after-pair-removals/
• https://leetcode.com/problems/time-based-key-value-store/
• https://leetcode.com/problems/snapshot-array/
• https://leetcode.com/problems/find-k-closest-elements/ +duplicate
• https://leetcode.com/problems/minimum-absolute-sum-difference/
• https://leetcode.com/problems/online-election/
• https://leetcode.com/problems/ju-qing-hong-fa-shi-jian/
• https://leetcode.com/problems/check-if-a-number-is-majority-element-in-a-sorted-array/
• https://leetcode.com/problems/fixed-point/
• https://leetcode.com/problems/search-in-a-sorted-array-of-unknown-size/
• https://leetcode.com/problems/shortest-distance-to-target-color/
• https://leetcode.com/problems/minimum-relative-loss-after-buying-chocolates/
• https://leetcode.com/problems/number-of-equal-numbers-blocks/
• https://leetcode.com/problems/element-appearing-more-than-25-in-sorted-array/
• https://leetcode.com/problems/find-the-smallest-divisor-given-a-threshold/
• https://leetcode.com/problems/minimum-time-to-complete-trips/
• https://leetcode.com/problems/minimum-speed-to-arrive-on-time/
• https://leetcode.com/problems/capacity-to-ship-packages-within-d-days/
• https://leetcode.com/problems/koko-eating-bananas/
• https://leetcode.com/problems/minimum-number-of-seconds-to-make-mountain-height-zero/
• https://leetcode.com/problems/heaters/
• https://leetcode.com/problems/minimum-time-to-repair-cars/
• https://leetcode.com/problems/minimum-number-of-days-to-make-m-bouquets/
• https://leetcode.com/problems/earliest-second-to-mark-indices-i/
• https://leetcode.com/problems/minimum-time-to-eat-all-grains/
• https://leetcode.com/problems/minimum-operations-to-make-numbers-non-positive/
• https://leetcode.com/problems/h-index-ii/ https://leetcode.cn/problems/h-index-ii/solution/tu-jie-yi-tu-zhang-wo-er-fen-da-an-si-ch-d15k/
• https://leetcode.com/problems/maximum-candies-allocated-to-k-children/
• https://leetcode.com/problems/find-longest-special-substring-that-occurs-thrice-ii/
• https://leetcode.com/problems/find-the-maximum-number-of-marked-indices/
• https://leetcode.com/problems/maximum-number-of-removable-characters/ +duplicate
• https://leetcode.com/problems/maximum-value-at-a-given-index-in-a-bounded-array/
• https://leetcode.com/problems/furthest-building-you-can-reach/
• https://leetcode.com/problems/maximum-number-of-alloys/
• https://leetcode.com/problems/maximum-number-that-sum-of-the-prices-is-less-than-or-equal-to-k/
• https://leetcode.com/problems/maximum-running-time-of-n-computers/
• https://leetcode.com/problems/escape-the-spreading-fire/
• https://leetcode.com/problems/maximum-number-of-tasks-you-can-assign/
• https://leetcode.com/problems/maximum-font-to-fit-a-sentence-in-a-screen/
• https://leetcode.com/problems/cutting-ribbons/
• https://leetcode.com/problems/pour-water-between-buckets-to-make-water-levels-equal/
• https://leetcode.com/problems/maximum-average-subarray-ii/
• https://leetcode.com/problems/maximum-points-inside-the-square/
• https://leetcode.com/problems/sell-diminishing-valued-colored-balls/
• https://leetcode.com/problems/split-array-largest-sum/
• https://leetcode.com/problems/minimized-maximum-of-products-distributed-to-any-store/
• https://leetcode.com/problems/minimum-limit-of-balls-in-a-bag/
• https://leetcode.com/problems/path-with-minimum-effort/
• https://leetcode.com/problems/minimize-maximum-of-array/
• https://leetcode.com/problems/house-robber-iv/
• https://leetcode.com/problems/swim-in-rising-water/
• https://leetcode.com/problems/minimize-the-maximum-difference-of-pairs/
• https://leetcode.com/problems/minimize-the-maximum-edge-weight-of-graph/
• https://leetcode.com/problems/minimize-the-maximum-of-two-arrays/
• https://leetcode.com/problems/smallest-substring-with-identical-characters-ii/
• https://leetcode.com/problems/xiao-zhang-shua-ti-ji-hua/
• https://leetcode.com/problems/minimize-max-distance-to-gas-station/
• https://leetcode.com/problems/maximize-score-of-numbers-in-ranges/
• https://leetcode.com/problems/maximum-tastiness-of-candy-basket/
• https://leetcode.com/problems/magnetic-force-between-two-balls/
• https://leetcode.com/problems/find-the-safest-path-in-a-grid/
• https://leetcode.com/problems/maximize-the-minimum-powered-city/
• https://leetcode.com/problems/path-with-maximum-minimum-value/
• https://leetcode.com/problems/divide-chocolate/
• https://leetcode.com/problems/kth-smallest-number-in-multiplication-table/
• https://leetcode.com/problems/kth-smallest-element-in-a-sorted-matrix/
• https://leetcode.com/problems/find-k-th-smallest-pair-distance/
• https://leetcode.com/problems/nth-magical-number/
• https://leetcode.com/problems/ugly-number-iii/
• https://leetcode.com/problems/preimage-size-of-factorial-zeroes-function/
• https://leetcode.com/problems/find-k-pairs-with-smallest-sums/
• https://leetcode.com/problems/find-the-kth-smallest-sum-of-a-matrix-with-sorted-rows/
• https://leetcode.com/problems/k-th-smallest-prime-fraction/
• https://leetcode.com/problems/kth-smallest-amount-with-single-denomination-combination/
• https://leetcode.com/problems/find-the-median-of-the-uniqueness-array/ +duplicate
• https://leetcode.com/problems/kth-smallest-product-of-two-sorted-arrays/
• https://leetcode.com/problems/find-the-k-sum-of-an-array/
• https://leetcode.com/problems/range-sum-of-sorted-subarray-sums/
• https://leetcode.com/problems/kth-smallest-subarray-sum/ +duplicate
• https://leetcode.com/problems/sqrtx/
• https://leetcode.com/problems/search-a-2d-matrix/
• https://leetcode.com/problems/search-a-2d-matrix-ii/
• https://leetcode.com/problems/closest-nodes-queries-in-a-binary-search-tree/
• https://leetcode.com/problems/first-bad-version/
• https://leetcode.com/problems/guess-number-higher-or-lower/
• https://leetcode.com/problems/find-peak-element/
• https://leetcode.com/problems/find-a-peak-element-ii/
• https://leetcode.com/problems/peak-index-in-a-mountain-array/
• https://leetcode.com/problems/find-in-mountain-array/
• https://leetcode.com/problems/find-minimum-in-rotated-sorted-array/
• https://leetcode.com/problems/find-minimum-in-rotated-sorted-array-ii/
• https://leetcode.com/problems/search-in-rotated-sorted-array/
• https://leetcode.com/problems/search-in-rotated-sorted-array-ii/
• https://leetcode.com/problems/count-complete-tree-nodes/
• https://leetcode.com/problems/kth-missing-positive-number/
• https://leetcode.com/problems/single-element-in-a-sorted-array/
• https://leetcode.com/problems/median-of-two-sorted-arrays/
• https://leetcode.com/problems/missing-element-in-sorted-array/
• https://leetcode.com/problems/find-smallest-common-element-in-all-rows/
• https://leetcode.com/problems/leftmost-column-with-at-least-a-one/
• https://leetcode.com/problems/find-the-index-of-the-large-integer/
• https://leetcode.com/problems/median-of-a-row-wise-sorted-matrix/
• https://leetcode.com/problems/smallest-rectangle-enclosing-black-pixels/

Mono Stack

• https://leetcode.com/problems/daily-temperatures/
• https://leetcode.com/problems/final-prices-with-a-special-discount-in-a-shop/
• https://leetcode.com/problems/next-greater-element-i/
• https://leetcode.com/problems/next-greater-element-ii/
• https://leetcode.com/problems/next-greater-node-in-linked-list/
• https://leetcode.com/problems/maximum-width-ramp/
• https://leetcode.com/problems/car-fleet/
• https://leetcode.com/problems/online-stock-span/
• https://leetcode.com/problems/longest-well-performing-interval/
• https://leetcode.com/problems/maximum-score-of-a-good-subarray/ +duplicate
• https://leetcode.com/problems/132-pattern/
• https://leetcode.com/problems/find-the-number-of-subarrays-where-boundary-elements-are-maximum/
• https://leetcode.com/problems/beautiful-towers-ii/
• https://leetcode.com/problems/number-of-visible-people-in-a-queue/
• https://leetcode.com/problems/next-greater-element-iv/
• https://leetcode.com/problems/minimum-cost-tree-from-leaf-values/
• https://leetcode.com/problems/steps-to-make-array-non-decreasing/
• https://leetcode.com/problems/car-fleet-ii/
• https://leetcode.com/problems/maximum-array-hopping-score-ii/
• https://leetcode.com/problems/binary-searchable-numbers-in-an-unsorted-array/
• https://leetcode.com/problems/maximal-range-that-each-element-is-maximum-in-it/
• https://leetcode.com/problems/number-of-people-that-can-be-seen-in-a-grid/
• https://leetcode.com/problems/largest-rectangle-in-histogram/
• https://leetcode.com/problems/maximum-score-of-a-good-subarray/ +duplicate
• https://leetcode.com/problems/maximal-rectangle/
• https://leetcode.com/problems/count-submatrices-with-all-ones/
• https://leetcode.com/problems/trapping-rain-water/ +duplicate
• https://leetcode.com/problems/pour-water/
• https://leetcode.com/problems/sum-of-subarray-minimums/
• https://leetcode.com/problems/sum-of-subarray-ranges/
• https://leetcode.com/problems/maximum-subarray-min-product/
• https://leetcode.com/problems/apply-operations-to-maximize-score/
• https://leetcode.com/problems/sum-of-total-strength-of-wizards/
• https://leetcode.com/problems/find-sorted-submatrices-with-maximum-element-at-most-k/
• https://leetcode.com/problems/subarray-with-elements-greater-than-varying-threshold/
• https://leetcode.com/problems/remove-k-digits/
• https://leetcode.com/problems/find-the-most-competitive-subsequence/
• https://leetcode.com/problems/remove-duplicate-letters/
• https://leetcode.com/problems/smallest-subsequence-of-distinct-characters/
• https://leetcode.com/problems/create-maximum-number/
• https://leetcode.com/problems/smallest-k-length-subsequence-with-occurrences-of-a-letter/

BFS/DFS

• https://leetcode.com/problems/minimum-moves-to-reach-target-with-rotations/
• https://leetcode.com/problems/number-of-islands/
• https://leetcode.com/problems/max-area-of-island/
• https://leetcode.com/problems/pond-sizes-lcci/
• https://leetcode.com/problems/YesdPw/
• https://leetcode.com/problems/island-perimeter/
• https://leetcode.com/problems/maximum-number-of-fish-in-a-grid/
• https://leetcode.com/problems/coloring-a-border/
• https://leetcode.com/problems/number-of-enclaves/
• https://leetcode.com/problems/maximum-number-of-moves-in-a-grid/
• https://leetcode.com/problems/number-of-closed-islands/
• https://leetcode.com/problems/surrounded-regions/
• https://leetcode.com/problems/count-sub-islands/
• https://leetcode.com/problems/check-if-there-is-a-valid-path-in-a-grid/
• https://leetcode.com/problems/pacific-atlantic-water-flow/
• https://leetcode.com/problems/minesweeper/
• https://leetcode.com/problems/detect-cycles-in-2d-grid/
• https://leetcode.com/problems/making-a-large-island/
• https://leetcode.com/problems/EXvqDp/
• https://leetcode.com/problems/number-of-islands-ii/
• https://leetcode.com/problems/number-of-spaces-cleaning-robot-cleaned/
• https://leetcode.com/problems/sum-of-remoteness-of-all-cells/
• https://leetcode.com/problems/nearest-exit-from-entrance-in-maze/
• https://leetcode.com/problems/shortest-path-in-binary-matrix/
• https://leetcode.com/problems/as-far-from-land-as-possible/
• https://leetcode.com/problems/01-matrix/
• https://leetcode.com/problems/rotting-oranges/
• https://leetcode.com/problems/map-of-highest-peak/
• https://leetcode.com/problems/shortest-bridge/
• https://leetcode.com/problems/k-highest-ranked-items-within-a-price-range/
• https://leetcode.com/problems/shortest-path-in-a-grid-with-obstacles-elimination/
• https://leetcode.com/problems/snakes-and-ladders/
• https://leetcode.com/problems/minimum-moves-to-reach-target-with-rotations/ +duplicate
• https://leetcode.com/problems/cut-off-trees-for-golf-event/
• https://leetcode.com/problems/contain-virus/
• https://leetcode.com/problems/shortest-path-to-get-food/
• https://leetcode.com/problems/walls-and-gates/
• https://leetcode.com/problems/the-maze/
• https://leetcode.com/problems/the-maze-ii/
• https://leetcode.com/problems/the-maze-iii/
• https://leetcode.com/problems/shortest-distance-from-all-buildings/
• https://leetcode.com/problems/minimum-time-takes-to-reach-destination-without-drowning/
• https://leetcode.com/problems/minimum-cost-to-make-at-least-one-valid-path-in-a-grid/
• https://leetcode.com/problems/minimum-obstacle-removal-to-reach-corner/
• https://leetcode.com/problems/find-a-safe-walk-through-a-grid/
• https://leetcode.com/problems/minimum-sideway-jumps/
• https://leetcode.com/problems/6UEx57/
• https://leetcode.com/problems/path-with-minimum-effort/ +duplicate
• https://leetcode.com/problems/swim-in-rising-water/ +duplicate
• https://leetcode.com/problems/longest-increasing-path-in-a-matrix/
• https://leetcode.com/problems/escape-a-large-maze/
• https://leetcode.com/problems/shortest-path-to-get-all-keys/
• https://leetcode.com/problems/minimum-moves-to-move-a-box-to-their-target-location/
• https://leetcode.com/problems/escape-the-spreading-fire/ +duplicate
• https://leetcode.com/problems/disconnect-path-in-a-binary-matrix-by-at-most-one-flip/
• https://leetcode.com/problems/minimum-time-to-visit-a-cell-in-a-grid/
• https://leetcode.com/problems/minimum-number-of-visited-cells-in-a-grid/
• https://leetcode.com/problems/xun-bao/
• https://leetcode.com/problems/Db3wC1/
• https://leetcode.com/problems/kplEvH/
• https://leetcode.com/problems/rdmXM7/
• https://leetcode.com/problems/cat-and-mouse-ii/
• https://leetcode.com/problems/number-of-distinct-islands/
• https://leetcode.com/problems/number-of-distinct-islands-ii/
• https://leetcode.com/problems/path-with-maximum-minimum-value/ +duplicate
• https://leetcode.com/problems/detect-cycles-in-2d-grid/ +duplicate
• https://leetcode.com/problems/making-a-large-island/ +duplicate
• https://leetcode.com/problems/shortest-path-in-a-grid-with-obstacles-elimination/ +duplicate
• https://leetcode.com/problems/minimum-moves-to-reach-target-with-rotations/ +duplicate

Bits

• https://leetcode.com/problems/smallest-number-with-all-set-bits/
• https://leetcode.com/problems/number-of-bit-changes-to-make-two-integers-equal/
• https://leetcode.com/problems/sort-integers-by-the-number-of-1-bits/
• https://leetcode.com/problems/hamming-distance/
• https://leetcode.com/problems/minimum-bit-flips-to-convert-number/
• https://leetcode.com/problems/number-complement/
• https://leetcode.com/problems/complement-of-base-10-integer/
• https://leetcode.com/problems/binary-gap/
• https://leetcode.com/problems/generate-binary-strings-without-adjacent-zeros/
• https://leetcode.com/problems/find-the-k-or-of-an-array/
• https://leetcode.com/problems/binary-number-with-alternating-bits/
• https://leetcode.com/problems/find-the-prefix-common-array-of-two-arrays/
• https://leetcode.com/problems/power-of-two/
• https://leetcode.com/problems/power-of-four/
• https://leetcode.com/problems/number-of-1-bits/
• https://leetcode.com/problems/number-of-even-and-odd-bits/
• https://leetcode.com/problems/counting-bits/
• https://leetcode.com/problems/xor-operation-in-an-array/
• https://leetcode.com/problems/decode-xored-array/
• https://leetcode.com/problems/find-the-original-array-of-prefix-xor/
• https://leetcode.com/problems/xor-queries-of-a-subarray/
• https://leetcode.com/problems/neighboring-bitwise-xor/
• https://leetcode.com/problems/maximum-xor-for-each-query/
• https://leetcode.com/problems/minimum-number-of-operations-to-make-array-xor-equal-to-k/
• https://leetcode.com/problems/count-triplets-that-can-form-two-arrays-of-equal-xor/
• https://leetcode.com/problems/minimize-xor/
• https://leetcode.com/problems/find-xor-beauty-of-array/
• https://leetcode.com/problems/maximum-xor-after-operations/
• https://leetcode.com/problems/count-the-number-of-beautiful-subarrays/
• https://leetcode.com/problems/substring-xor-queries/
• https://leetcode.com/problems/decode-xored-permutation/
• https://leetcode.com/problems/count-pairs-of-points-with-distance-k/
• https://leetcode.com/problems/count-pairs-with-xor-in-a-range/
• https://leetcode.com/problems/count-triplets-with-even-xor-set-bits-ii/
• https://leetcode.com/problems/check-if-bitwise-or-has-trailing-zeros/
• https://leetcode.com/problems/minimum-flips-to-make-a-or-b-equal-to-c/
• https://leetcode.com/problems/longest-subarray-with-maximum-bitwise-and/
• https://leetcode.com/problems/split-array-into-maximum-number-of-subarrays/
• https://leetcode.com/problems/longest-nice-subarray/ +duplicate
• https://leetcode.com/problems/maximum-or/
• https://leetcode.com/problems/minimum-array-end/
• https://leetcode.com/problems/minimum-cost-walk-in-weighted-graph/
• https://leetcode.com/problems/minimum-sum-of-values-by-dividing-array/
• https://leetcode.com/problems/maximum-number-that-makes-result-of-bitwise-and-zero/
• https://leetcode.com/problems/find-subarray-with-bitwise-or-closest-to-k/ https://leetcode.cn/problems/smallest-subarrays-with-maximum-bitwise-or/solution/by-endlesscheng-zai1/
• https://leetcode.com/problems/shortest-subarray-with-or-at-least-k-ii/
• https://leetcode.com/problems/smallest-subarrays-with-maximum-bitwise-or/
• https://leetcode.com/problems/number-of-subarrays-with-and-value-of-k/
• https://leetcode.com/problems/find-subarray-with-bitwise-or-closest-to-k/ +duplicate
• https://leetcode.com/problems/find-a-value-of-a-mysterious-function-closest-to-target/
• https://leetcode.com/problems/bitwise-ors-of-subarrays/
• https://leetcode.com/problems/total-hamming-distance/
• https://leetcode.com/problems/sum-of-all-subset-xor-totals/
• https://leetcode.com/problems/bitwise-xor-of-all-pairings/
• https://leetcode.com/problems/largest-combination-with-bitwise-and-greater-than-zero/
• https://leetcode.com/problems/find-xor-sum-of-all-pairs-bitwise-and/
• https://leetcode.com/problems/bitwise-or-of-all-subsequence-sums/
• https://leetcode.com/problems/sum-of-digit-differences-of-all-pairs/
• https://leetcode.com/problems/maximum-number-that-sum-of-the-prices-is-less-than-or-equal-to-k/ +duplicate
• https://leetcode.com/problems/maximum-xor-of-two-numbers-in-an-array/ https://leetcode.cn/problems/maximum-xor-of-two-numbers-in-an-array/solution/tu-jie-jian-ji-gao-xiao-yi-tu-miao-dong-1427d/
• https://leetcode.com/problems/maximum-strong-pair-xor-ii/
• https://leetcode.com/problems/find-products-of-elements-of-big-array/
• https://leetcode.com/problems/minimize-or-of-remaining-elements-using-operations/
• https://leetcode.com/problems/find-the-maximum-sequence-value-of-array/
• https://leetcode.com/problems/find-xor-sum-of-all-pairs-bitwise-and/ +duplicate
• https://leetcode.com/problems/number-of-excellent-pairs/
• https://leetcode.com/problems/apply-bitwise-operations-to-make-strings-equal/
• https://leetcode.com/problems/minimum-numbers-of-function-calls-to-make-target-array/
• https://leetcode.com/problems/minimum-operations-to-reduce-an-integer-to-0/
• https://leetcode.com/problems/construct-the-minimum-bitwise-array-ii/
• https://leetcode.com/problems/minimum-impossible-or/
• https://leetcode.com/problems/cycle-length-queries-in-a-tree/
• https://leetcode.com/problems/maximum-xor-product/
• https://leetcode.com/problems/minimum-operations-to-make-the-integer-zero/
• https://leetcode.com/problems/minimum-operations-to-form-subsequence-with-target-sum/
• https://leetcode.com/problems/apply-operations-on-array-to-maximize-sum-of-squares/
• https://leetcode.com/problems/chalkboard-xor-game/
• https://leetcode.com/problems/guess-the-number-using-bitwise-questions-i/
• https://leetcode.com/problems/guess-the-number-using-bitwise-questions-ii/
• https://leetcode.com/problems/single-number/
• https://leetcode.com/problems/find-the-duplicate-number/
• https://leetcode.com/problems/single-number-iii/
• https://leetcode.com/problems/find-missing-and-repeated-values/
• https://leetcode.com/problems/single-number-ii/
• https://leetcode.com/problems/set-mismatch/
• https://leetcode.com/problems/reverse-bits/
• https://leetcode.com/problems/sum-of-two-integers/
• https://leetcode.com/problems/bitwise-and-of-numbers-range/
• https://leetcode.com/problems/keep-multiplying-found-values-by-two/
• https://leetcode.com/problems/count-number-of-maximum-bitwise-or-subsets/
• https://leetcode.com/problems/range-product-queries-of-powers/
• https://leetcode.com/problems/concatenation-of-consecutive-binary-numbers/
• https://leetcode.com/problems/find-elements-in-a-contaminated-binary-tree/
• https://leetcode.com/problems/gray-code/
• https://leetcode.com/problems/circular-permutation-in-binary-representation/
• https://leetcode.com/problems/triples-with-bitwise-and-equal-to-zero/
• https://leetcode.com/problems/find-the-k-th-character-in-string-game-ii/
• https://leetcode.com/problems/minimum-one-bit-operations-to-make-integers-zero/
• https://leetcode.com/problems/ryfUiz/
• https://leetcode.com/problems/ip-to-cidr/
• https://leetcode.com/problems/maximum-hamming-distances/ https://leetcode.com/problems/string-transformation/solution/kmp-ju-zhen-kuai-su-mi-you-hua-dp-by-end-vypf/

Graph

• https://leetcode.com/problems/number-of-provinces/
• https://leetcode.com/problems/find-if-path-exists-in-graph/
• https://leetcode.com/problems/all-paths-from-source-to-target/
• https://leetcode.com/problems/keys-and-rooms/
• https://leetcode.com/problems/count-unreachable-pairs-of-nodes-in-an-undirected-graph/
• https://leetcode.com/problems/number-of-operations-to-make-network-connected/
• https://leetcode.com/problems/minimum-score-of-a-path-between-two-cities/
• https://leetcode.com/problems/maximize-amount-after-two-days-of-conversions/
• https://leetcode.com/problems/remove-methods-from-project/
• https://leetcode.com/problems/count-the-number-of-complete-components/
• https://leetcode.com/problems/all-ancestors-of-a-node-in-a-directed-acyclic-graph/
• https://leetcode.com/problems/minimize-malware-spread/
• https://leetcode.com/problems/detonate-the-maximum-bombs/
• https://leetcode.com/problems/accounts-merge/
• https://leetcode.com/problems/course-schedule/
• https://leetcode.com/problems/find-eventual-safe-states/
• https://leetcode.com/problems/minimize-malware-spread-ii/
• https://leetcode.com/problems/find-all-people-with-secret/
• https://leetcode.com/problems/minimum-cost-walk-in-weighted-graph/ +duplicate
• https://leetcode.com/problems/graph-valid-tree/
• https://leetcode.com/problems/number-of-connected-components-in-an-undirected-graph/
• https://leetcode.com/problems/shortest-distance-after-road-addition-queries-i/
• https://leetcode.com/problems/get-watched-videos-by-your-friends/
• https://leetcode.com/problems/shortest-path-with-alternating-colors/
• https://leetcode.com/problems/maximum-candies-you-can-get-from-boxes/
• https://leetcode.com/problems/the-time-when-the-network-becomes-idle/
• https://leetcode.com/problems/shortest-cycle-in-a-graph/
• https://leetcode.com/problems/bus-routes/
• https://leetcode.com/problems/minimum-number-of-vertices-to-reach-all-nodes/
• https://leetcode.com/problems/course-schedule-ii/
• https://leetcode.com/problems/course-schedule-iv/
• https://leetcode.com/problems/find-all-possible-recipes-from-given-supplies/
• https://leetcode.com/problems/loud-and-rich/
• https://leetcode.com/problems/minimum-height-trees/
• https://leetcode.com/problems/build-a-matrix-with-conditions/
• https://leetcode.com/problems/find-eventual-safe-states/ +duplicate
• https://leetcode.com/problems/strange-printer-ii/
• https://leetcode.com/problems/sort-items-by-groups-respecting-dependencies/
• https://leetcode.com/problems/collect-coins-in-a-tree/
• https://leetcode.com/problems/Jf1JuT/
• https://leetcode.com/problems/alien-dictionary/
• https://leetcode.com/problems/sequence-reconstruction/
• https://leetcode.com/problems/all-paths-from-source-lead-to-destination/
• https://leetcode.com/problems/parallel-courses/
• https://leetcode.com/problems/parallel-courses-iii/
• https://leetcode.com/problems/largest-color-value-in-a-directed-graph/ https://leetcode.com/problems/maximum-employees-to-be-invited-to-a-meeting/solution/nei-xiang-ji-huan-shu-tuo-bu-pai-xu-fen-c1i1b/
• https://leetcode.com/problems/find-closest-node-to-given-two-nodes/
• https://leetcode.com/problems/longest-cycle-in-a-graph/
• https://leetcode.com/problems/redundant-connection/
• https://leetcode.com/problems/redundant-connection-ii/
• https://leetcode.com/problems/count-visited-nodes-in-a-directed-graph/
• https://leetcode.com/problems/maximum-employees-to-be-invited-to-a-meeting/
• https://leetcode.com/problems/maximize-value-of-function-in-a-ball-passing-game/
• https://leetcode.com/problems/Za25hA/
• https://leetcode.com/problems/distance-to-a-cycle-in-undirected-graph/ https://leetcode.com/problems/network-delay-time/solution/liang-chong-dijkstra-xie-fa-fu-ti-dan-py-ooe8/
• https://leetcode.com/problems/network-delay-time/
• https://leetcode.com/problems/find-minimum-time-to-reach-last-room-i/
• https://leetcode.com/problems/minimum-time-to-visit-disappearing-nodes/
• https://leetcode.com/problems/design-graph-with-shortest-path-calculator/
• https://leetcode.com/problems/path-with-maximum-probability/
• https://leetcode.com/problems/find-minimum-time-to-reach-last-room-ii/
• https://leetcode.com/problems/path-with-minimum-effort/ +duplicate
• https://leetcode.com/problems/number-of-restricted-paths-from-first-to-last-node/
• https://leetcode.com/problems/find-edges-in-shortest-paths/
• https://leetcode.com/problems/number-of-ways-to-arrive-at-destination/
• https://leetcode.com/problems/swim-in-rising-water/ +duplicate
• https://leetcode.com/problems/minimum-cost-of-a-path-with-special-roads/
• https://leetcode.com/problems/digit-operations-to-make-two-integers-equal/
• https://leetcode.com/problems/second-minimum-time-to-reach-destination/
• https://leetcode.com/problems/minimize-the-maximum-edge-weight-of-graph/ +duplicate
• https://leetcode.com/problems/reachable-nodes-in-subdivided-graph/
• https://leetcode.com/problems/minimum-weighted-subgraph-with-the-required-paths/
• https://leetcode.com/problems/minimum-time-to-visit-a-cell-in-a-grid/ +duplicate
• https://leetcode.com/problems/minimum-cost-to-reach-destination-in-time/
• https://leetcode.com/problems/cheapest-flights-within-k-stops/
• https://leetcode.com/problems/modify-graph-edge-weights/
• https://leetcode.com/problems/DFPeFJ/
• https://leetcode.com/problems/minimum-path-cost-in-a-hidden-grid/
• https://leetcode.com/problems/minimum-cost-to-reach-city-with-discounts/
• https://leetcode.com/problems/minimum-cost-to-buy-apples/
• https://leetcode.com/problems/find-shortest-path-with-k-hops/
• https://leetcode.com/problems/find-the-closest-marked-node/ https://leetcode.com/problems/find-the-city-with-the-smallest-number-of-neighbors-at-a-threshold-distance/solution/dai-ni-fa-ming-floyd-suan-fa-cong-ji-yi-m8s51/
• https://leetcode.com/problems/design-graph-with-shortest-path-calculator/ +duplicate
• https://leetcode.com/problems/find-the-city-with-the-smallest-number-of-neighbors-at-a-threshold-distance/
• https://leetcode.com/problems/minimum-cost-to-convert-string-i/
• https://leetcode.com/problems/number-of-possible-sets-of-closing-branches/
• https://leetcode.com/problems/minimum-cost-to-convert-string-ii/
• https://leetcode.com/problems/detonate-the-maximum-bombs/ +duplicate
• https://leetcode.com/problems/min-cost-to-connect-all-points/
• https://leetcode.com/problems/find-critical-and-pseudo-critical-edges-in-minimum-spanning-tree/
• https://leetcode.com/problems/connecting-cities-with-minimum-cost/
• https://leetcode.com/problems/optimize-water-distribution-in-a-village/
• https://leetcode.com/problems/minimum-cost-for-cutting-cake-ii/
• https://leetcode.com/problems/reconstruct-itinerary/
• https://leetcode.com/problems/cracking-the-safe/
• https://leetcode.com/problems/valid-arrangement-of-pairs/
• https://leetcode.com/problems/critical-connections-in-a-network/
• https://leetcode.com/problems/minimum-number-of-days-to-disconnect-island/
• https://leetcode.com/problems/s5kipK/
• https://leetcode.com/problems/minimum-runes-to-add-to-cast-spell/
• https://leetcode.com/problems/is-graph-bipartite/
• https://leetcode.com/problems/possible-bipartition/
• https://leetcode.com/problems/minimum-time-to-break-locks-i/
• https://leetcode.com/problems/maximum-compatibility-score-sum/
• https://leetcode.com/problems/minimum-moves-to-spread-stones-over-grid/
• https://leetcode.com/problems/minimum-xor-sum-of-two-arrays/
• https://leetcode.com/problems/maximum-students-taking-exam/
• https://leetcode.com/problems/maximum-and-sum-of-array/
• https://leetcode.com/problems/select-cells-in-grid-with-maximum-score/
• https://leetcode.com/problems/minimum-cost-to-connect-two-groups-of-points/
• https://leetcode.com/problems/maximum-value-sum-by-placing-three-rooks-ii/
• https://leetcode.com/problems/broken-board-dominoes/
• https://leetcode.com/problems/7rLGCR/
• https://leetcode.com/problems/maximum-number-of-accepted-invitations/
• https://leetcode.com/problems/minimum-time-to-kill-all-monsters/
• https://leetcode.com/problems/minimum-time-to-break-locks-ii/
• https://leetcode.com/problems/campus-bikes-ii/
• https://leetcode.com/problems/minimum-operations-to-remove-adjacent-ones-in-matrix/
• https://leetcode.com/problems/minimum-total-distance-traveled/
• https://leetcode.com/problems/flower-planting-with-no-adjacent/
• https://leetcode.com/problems/minimum-degree-of-a-connected-trio-in-a-graph/
• https://leetcode.com/problems/add-edges-to-make-degrees-of-all-nodes-even/
• https://leetcode.com/problems/remove-max-number-of-edges-to-keep-graph-fully-traversable/
• https://leetcode.com/problems/maximum-path-quality-of-a-graph/
• https://leetcode.com/problems/checking-existence-of-edge-length-limited-paths/
• https://leetcode.com/problems/maximum-score-of-a-node-sequence/
• https://leetcode.com/problems/divide-nodes-into-the-maximum-number-of-groups/
• https://leetcode.com/problems/count-pairs-of-nodes/ +duplicate
• https://leetcode.com/problems/frequencies-of-shortest-supersequences/
• https://leetcode.com/problems/you-le-yuan-de-you-lan-ji-hua/
• https://leetcode.com/problems/find-the-celebrity/
• https://leetcode.com/problems/checking-existence-of-edge-length-limited-paths-ii/
• https://leetcode.com/problems/paths-in-maze-that-lead-to-same-room/

DP

https://leetcode.com/problems/climbing-stairs/solution/jiao-ni-yi-bu-bu-si-kao-dong-tai-gui-hua-7zm1/

• https://leetcode.com/problems/climbing-stairs/
• https://leetcode.com/problems/min-cost-climbing-stairs/
• https://leetcode.com/problems/combination-sum-iv/
• https://leetcode.com/problems/count-ways-to-build-good-strings/
• https://leetcode.com/problems/count-number-of-texts/
• https://leetcode.com/problems/number-of-good-binary-strings/
• https://leetcode.com/problems/house-robber/
• https://leetcode.com/problems/delete-and-earn/
• https://leetcode.com/problems/count-number-of-ways-to-place-houses/
• https://leetcode.com/problems/house-robber-ii/
• https://leetcode.com/problems/maximum-total-damage-with-spell-casting/ https://leetcode.com/problems/maximum-subarray/solution/qian-zhui-he-zuo-fa-ben-zhi-shi-mai-mai-abu71/
• https://leetcode.com/problems/maximum-subarray/
• https://leetcode.com/problems/find-the-substring-with-maximum-cost/
• https://leetcode.com/problems/maximum-absolute-sum-of-any-subarray/
• https://leetcode.com/problems/k-concatenation-maximum-sum/
• https://leetcode.com/problems/maximum-sum-circular-subarray/
• https://leetcode.com/problems/maximum-score-of-spliced-array/
• https://leetcode.com/problems/maximum-product-subarray/
• https://leetcode.com/problems/minimum-path-sum/
• https://leetcode.com/problems/minimum-path-sum/ +duplicate
• https://leetcode.com/problems/unique-paths/
• https://leetcode.com/problems/unique-paths-ii/
• https://leetcode.com/problems/triangle/
• https://leetcode.com/problems/count-paths-with-the-given-xor-value/
• https://leetcode.com/problems/minimum-falling-path-sum/
• https://leetcode.com/problems/maximum-number-of-moves-in-a-grid/ +duplicate
• https://leetcode.com/problems/minimum-path-cost-in-a-grid/
• https://leetcode.com/problems/minimum-falling-path-sum-ii/
• https://leetcode.com/problems/maximum-amount-of-money-robot-can-earn/
• https://leetcode.com/problems/maximum-non-negative-product-in-a-matrix/
• https://leetcode.com/problems/number-of-paths-with-max-score/
• https://leetcode.com/problems/paths-in-matrix-whose-sum-is-divisible-by-k/
• https://leetcode.com/problems/dungeon-game/
• https://leetcode.com/problems/longest-increasing-path-in-a-matrix/ +duplicate
• https://leetcode.com/problems/number-of-increasing-paths-in-a-grid/
• https://leetcode.com/problems/check-if-there-is-a-valid-parentheses-string-path/
• https://leetcode.com/problems/maximum-number-of-points-with-cost/
• https://leetcode.com/problems/find-the-maximum-number-of-fruits-collected/
• https://leetcode.com/problems/cherry-pickup-ii/
• https://leetcode.com/problems/cherry-pickup/
• https://leetcode.com/problems/check-if-there-is-a-path-with-equal-number-of-0s-and-1s/
• https://leetcode.com/problems/length-of-the-longest-subsequence-that-sums-to-target/
• https://leetcode.com/problems/partition-equal-subset-sum/
• https://leetcode.com/problems/target-sum/
• https://leetcode.com/problems/ways-to-express-an-integer-as-sum-of-powers/
• https://leetcode.com/problems/maximum-total-reward-using-operations-i/
• https://leetcode.com/problems/ones-and-zeroes/
• https://leetcode.com/problems/last-stone-weight-ii/
• https://leetcode.com/problems/closest-dessert-cost/
• https://leetcode.com/problems/profitable-schemes/
• https://leetcode.com/problems/find-the-sum-of-the-power-of-all-subsequences/
• https://leetcode.com/problems/tallest-billboard/
• https://leetcode.com/problems/number-of-great-partitions/
• https://leetcode.com/problems/painting-the-walls/
• https://leetcode.com/problems/find-the-maximum-sequence-value-of-array/ +duplicate
• https://leetcode.com/problems/oPs9Bm/
• https://leetcode.com/problems/maximum-profit-from-trading-stocks/
• https://leetcode.com/problems/maximize-total-tastiness-of-purchased-fruits/
• https://leetcode.com/problems/coin-change/
• https://leetcode.com/problems/coin-change-ii/
• https://leetcode.com/problems/perfect-squares/
• https://leetcode.com/problems/form-largest-integer-with-digits-that-add-up-to-target/
• https://leetcode.com/problems/the-number-of-ways-to-make-the-sum/
• https://leetcode.com/problems/number-of-ways-to-earn-points/
• https://leetcode.com/problems/find-the-original-typed-string-ii/
• https://leetcode.com/problems/count-of-sub-multisets-with-bounded-sum/
• https://leetcode.com/problems/number-of-dice-rolls-with-target-sum/
• https://leetcode.com/problems/minimize-the-difference-between-target-and-chosen-elements/
• https://leetcode.com/problems/maximum-value-of-k-coins-from-piles/
• https://leetcode.com/problems/longest-common-subsequence/
• https://leetcode.com/problems/delete-operation-for-two-strings/
• https://leetcode.com/problems/minimum-ascii-delete-sum-for-two-strings/
• https://leetcode.com/problems/edit-distance/
• https://leetcode.com/problems/interleaving-string/
• https://leetcode.com/problems/distinct-subsequences/
• https://leetcode.com/problems/uncrossed-lines/
• https://leetcode.com/problems/max-dot-product-of-two-subsequences/
• https://leetcode.com/problems/shortest-common-supersequence/
• https://leetcode.com/problems/find-maximum-removals-from-source-string/
• https://leetcode.com/problems/number-of-ways-to-form-a-target-string-given-a-dictionary/
• https://leetcode.com/problems/wildcard-matching/
• https://leetcode.com/problems/regular-expression-matching/
• https://leetcode.com/problems/maximize-number-of-subsequences-in-a-string/
• https://leetcode.com/problems/longest-increasing-subsequence/
• https://leetcode.com/problems/sorting-three-groups/
• https://leetcode.com/problems/minimum-number-of-removals-to-make-mountain-array/
• https://leetcode.com/problems/find-the-longest-valid-obstacle-course-at-each-position/
• https://leetcode.com/problems/minimum-operations-to-make-the-array-k-increasing/
• https://leetcode.com/problems/number-of-longest-increasing-subsequence/
• https://leetcode.com/problems/best-team-with-no-conflicts/
• https://leetcode.com/problems/russian-doll-envelopes/
• https://leetcode.com/problems/maximum-height-by-stacking-cuboids/
• https://leetcode.com/problems/delete-columns-to-make-sorted-iii/
• https://leetcode.com/problems/longest-increasing-subsequence-ii/
• https://leetcode.com/problems/make-array-strictly-increasing/
• https://leetcode.com/problems/minimum-operations-to-make-a-subsequence/
• https://leetcode.com/problems/length-of-the-longest-increasing-path/
• https://leetcode.com/problems/largest-divisible-subset/
• https://leetcode.com/problems/number-of-longest-increasing-subsequence/ +duplicate
• https://leetcode.com/problems/best-time-to-buy-and-sell-stock/
• https://leetcode.com/problems/best-time-to-buy-and-sell-stock-ii/
• https://leetcode.com/problems/best-time-to-buy-and-sell-stock-iii/
• https://leetcode.com/problems/best-time-to-buy-and-sell-stock-iv/
• https://leetcode.com/problems/best-time-to-buy-and-sell-stock-with-cooldown/
• https://leetcode.com/problems/best-time-to-buy-and-sell-stock-with-transaction-fee/
• https://leetcode.com/problems/longest-subarray-of-1s-after-deleting-one-element/ +duplicate
• https://leetcode.com/problems/maximum-energy-boost-from-two-drinks/
• https://leetcode.com/problems/construct-the-longest-new-string/
• https://leetcode.com/problems/number-of-ways-to-select-buildings/
• https://leetcode.com/problems/maximum-multiplication-score/
• https://leetcode.com/problems/wiggle-subsequence/
• https://leetcode.com/problems/maximum-length-of-subarray-with-positive-product/
• https://leetcode.com/problems/maximum-strength-of-a-group/
• https://leetcode.com/problems/sorting-three-groups/ +duplicate
• https://leetcode.com/problems/visit-array-positions-to-maximize-score/
• https://leetcode.com/problems/greatest-sum-divisible-by-three/
• https://leetcode.com/problems/largest-multiple-of-three/
• https://leetcode.com/problems/maximum-alternating-subsequence-sum/
• https://leetcode.com/problems/count-number-of-teams/
• https://leetcode.com/problems/longest-non-decreasing-subarray-from-two-arrays/
• https://leetcode.com/problems/maximum-subarray-sum-with-one-deletion/
• https://leetcode.com/problems/maximum-non-negative-product-in-a-matrix/ +duplicate
• https://leetcode.com/problems/maximize-total-cost-of-alternating-subarrays/
• https://leetcode.com/problems/knight-dialer/
• https://leetcode.com/problems/get-the-maximum-score/ +duplicate
• https://leetcode.com/problems/minimum-increment-operations-to-make-array-beautiful/
• https://leetcode.com/problems/minimum-swaps-to-make-sequences-increasing/
• https://leetcode.com/problems/maximum-frequency-after-subarray-operation/
• https://leetcode.com/problems/count-number-of-special-subsequences/
• https://leetcode.com/problems/find-the-maximum-sum-of-node-values/
• https://leetcode.com/problems/UlBDOe/
• https://leetcode.com/problems/paint-fence/
• https://leetcode.com/problems/maximum-subarray-sum-after-one-operation/
• https://leetcode.com/problems/maximum-alternating-subarray-sum/
• https://leetcode.com/problems/minimum-costs-using-the-train-line/
• https://leetcode.com/problems/constructing-two-increasing-arrays/
• https://leetcode.com/problems/check-if-there-is-a-valid-partition-for-the-array/
• https://leetcode.com/problems/word-break/
• https://leetcode.com/problems/palindrome-partitioning-ii/
• https://leetcode.com/problems/extra-characters-in-a-string/
• https://leetcode.com/problems/maximize-total-cost-of-alternating-subarrays/ +duplicate
• https://leetcode.com/problems/partition-string-into-minimum-beautiful-substrings/
• https://leetcode.com/problems/decode-ways/
• https://leetcode.com/problems/decode-ways-ii/
• https://leetcode.com/problems/ba-shu-zi-fan-yi-cheng-zi-fu-chuan-lcof/
• https://leetcode.com/problems/restore-the-array/
• https://leetcode.com/problems/maximum-number-of-non-overlapping-palindrome-substrings/
• https://leetcode.com/problems/filling-bookcase-shelves/
• https://leetcode.com/problems/minimum-cost-to-split-an-array/
• https://leetcode.com/problems/maximum-deletions-on-a-string/
• https://leetcode.com/problems/minimum-total-distance-traveled/ +duplicate
• https://leetcode.com/problems/minimum-cost-to-convert-string-ii/ +duplicate
• https://leetcode.com/problems/minimum-cost-good-caption/
• https://leetcode.com/problems/minimum-cost-to-separate-sentence-into-rows/
• https://leetcode.com/problems/minimum-subarrays-in-a-valid-split/
• https://leetcode.com/problems/split-array-largest-sum/ +duplicate
• https://leetcode.com/problems/partition-array-for-maximum-sum/
• https://leetcode.com/problems/palindrome-partitioning-iv/
• https://leetcode.com/problems/largest-sum-of-averages/
• https://leetcode.com/problems/palindrome-partitioning-iii/
• https://leetcode.com/problems/minimum-difficulty-of-a-job-schedule/
• https://leetcode.com/problems/paint-house-iii/
• https://leetcode.com/problems/allocate-mailboxes/
• https://leetcode.com/problems/minimum-total-space-wasted-with-k-resizing-operations/
• https://leetcode.com/problems/number-of-beautiful-partitions/
• https://leetcode.com/problems/maximum-strength-of-k-disjoint-subarrays/
• https://leetcode.com/problems/minimum-changes-to-make-k-semi-palindromes/
• https://leetcode.com/problems/minimum-sum-of-values-by-dividing-array/ +duplicate
• https://leetcode.com/problems/maximize-the-profit-as-the-salesman/
• https://leetcode.com/problems/maximum-earnings-from-taxi/
• https://leetcode.com/problems/two-best-non-overlapping-events/
• https://leetcode.com/problems/maximum-profit-in-job-scheduling/
• https://leetcode.com/problems/maximum-number-of-events-that-can-be-attended-ii/
• https://leetcode.com/problems/maximum-score-of-non-overlapping-intervals/
• https://leetcode.com/problems/minimum-number-of-coins-for-fruits/
• https://leetcode.com/problems/solving-questions-with-brainpower/
• https://leetcode.com/problems/minimum-cost-for-tickets/
• https://leetcode.com/problems/longest-unequal-adjacent-groups-subsequence-ii/
• https://leetcode.com/problems/minimum-substring-partition-of-equal-character-frequency/
• https://leetcode.com/problems/minimum-number-of-refueling-stops/
• https://leetcode.com/problems/apply-operations-to-make-two-strings-equal/
• https://leetcode.com/problems/minimum-time-to-remove-all-cars-containing-illegal-goods/
• https://leetcode.com/problems/minimum-time-to-finish-the-race/
• https://leetcode.com/problems/minimum-operations-to-make-character-frequencies-equal/
• https://leetcode.com/problems/maximum-array-hopping-score-i/
• https://leetcode.com/problems/handshakes-that-dont-cross/
• https://leetcode.com/problems/longest-square-streak-in-an-array/
• https://leetcode.com/problems/longest-arithmetic-subsequence-of-given-difference/
• https://leetcode.com/problems/longest-arithmetic-subsequence/
• https://leetcode.com/problems/length-of-longest-fibonacci-subsequence/
• https://leetcode.com/problems/find-the-maximum-length-of-valid-subsequence-ii/
• https://leetcode.com/problems/arithmetic-slices-ii-subsequence/
• https://leetcode.com/problems/sum-of-good-subsequences/
• https://leetcode.com/problems/maximize-consecutive-elements-in-an-array-after-modification/
• https://leetcode.com/problems/longest-subsequence-with-decreasing-adjacent-difference/
• https://leetcode.com/problems/find-the-sum-of-subsequence-powers/
• https://leetcode.com/problems/longest-string-chain/
• https://leetcode.com/problems/climbing-stairs/ +duplicate
• https://leetcode.com/problems/fibonacci-number/
• https://leetcode.com/problems/n-th-tribonacci-number/
• https://leetcode.com/problems/count-vowels-permutation/
• https://leetcode.com/problems/student-attendance-record-ii/
• https://leetcode.com/problems/knight-dialer/ +duplicate
• https://leetcode.com/problems/domino-and-tromino-tiling/
• https://leetcode.com/problems/total-characters-in-string-after-transformations-ii/
• https://leetcode.com/problems/string-transformation/
• https://leetcode.com/problems/number-of-ways-to-reach-destination-in-the-grid/
• https://leetcode.com/problems/maximum-difference-score-in-a-grid/
• https://leetcode.com/problems/maximal-square/
• https://leetcode.com/problems/count-square-submatrices-with-all-ones/
• https://leetcode.com/problems/count-fertile-pyramids-in-a-land/
• https://leetcode.com/problems/find-the-minimum-area-to-cover-all-ones-ii/
• https://leetcode.com/problems/number-of-ways-to-reach-a-position-after-exactly-k-steps/
• https://leetcode.com/problems/minimum-sideway-jumps/ +duplicate
• https://leetcode.com/problems/maximum-points-tourist-can-earn/
• https://leetcode.com/problems/longest-ideal-subsequence/
• https://leetcode.com/problems/find-the-maximum-length-of-a-good-subsequence-i/
• https://leetcode.com/problems/number-of-ways-to-stay-in-the-same-place-after-some-steps/
• https://leetcode.com/problems/find-the-count-of-monotonic-pairs-i/
• https://leetcode.com/problems/minimum-cost-for-cutting-cake-i/
• https://leetcode.com/problems/minimum-number-of-operations-to-satisfy-conditions/
• https://leetcode.com/problems/out-of-boundary-paths/
• https://leetcode.com/problems/frog-jump/
• https://leetcode.com/problems/dice-roll-simulation/
• https://leetcode.com/problems/minimum-distance-to-type-a-word-using-two-fingers/
• https://leetcode.com/problems/minimum-array-sum/
• https://leetcode.com/problems/count-all-possible-routes/
• https://leetcode.com/problems/find-number-of-ways-to-reach-the-k-th-stair/
• https://leetcode.com/problems/number-of-distinct-roll-sequences/
• https://leetcode.com/problems/minimum-white-tiles-after-covering-with-carpets/
• https://leetcode.com/problems/number-of-ways-of-cutting-a-pizza/
• https://leetcode.com/problems/count-the-number-of-winning-sequences/
• https://leetcode.com/problems/build-array-where-you-can-find-the-maximum-exactly-k-comparisons/
• https://leetcode.com/problems/paint-house-iv/
• https://leetcode.com/problems/count-the-number-of-inversions/
• https://leetcode.com/problems/k-inverse-pairs-array/
• https://leetcode.com/problems/letter-tile-possibilities/
• https://leetcode.com/problems/number-of-ways-to-rearrange-sticks-with-k-sticks-visible/
• https://leetcode.com/problems/selling-pieces-of-wood/
• https://leetcode.com/problems/find-the-maximum-length-of-a-good-subsequence-ii/
• https://leetcode.com/problems/egg-drop-with-2-eggs-and-n-floors/
• https://leetcode.com/problems/super-egg-drop/
• https://leetcode.com/problems/freedom-trail/
• https://leetcode.com/problems/find-the-number-of-subsequences-with-equal-gcd/
• https://leetcode.com/problems/pizza-with-3n-slices/
• https://leetcode.com/problems/the-earliest-and-latest-rounds-where-players-compete/
• https://leetcode.com/problems/minimum-skips-to-arrive-at-meeting-on-time/
• https://leetcode.com/problems/count-number-of-balanced-permutations/
• https://leetcode.com/problems/ZbAuEH/
• https://leetcode.com/problems/minimum-cost-good-caption/ +duplicate
• https://leetcode.com/problems/maximum-score-from-grid-operations/
• https://leetcode.com/problems/paint-house/
• https://leetcode.com/problems/paint-house-ii/
• https://leetcode.com/problems/find-the-number-of-k-even-arrays/
• https://leetcode.com/problems/maximum-vacation-days/
• https://leetcode.com/problems/count-ways-to-distribute-candies/
• https://leetcode.com/problems/choose-numbers-from-two-arrays-in-range/
• https://leetcode.com/problems/constructing-two-increasing-arrays/ +duplicate
• https://leetcode.com/problems/longest-palindromic-subsequence/
• https://leetcode.com/problems/count-different-palindromic-subsequences/
• https://leetcode.com/problems/minimum-insertion-steps-to-make-a-string-palindrome/
• https://leetcode.com/problems/maximize-palindrome-length-from-subsequences/
• https://leetcode.com/problems/longest-palindromic-subsequence-ii/
• https://leetcode.com/problems/valid-palindrome-iii/
• https://leetcode.com/problems/palindrome-removal/
• https://leetcode.com/problems/longest-palindromic-substring/
• https://leetcode.com/problems/maximum-number-of-operations-with-the-same-score-ii/
• https://leetcode.com/problems/guess-number-higher-or-lower-ii/
• https://leetcode.com/problems/minimum-cost-tree-from-leaf-values/ +duplicate
• https://leetcode.com/problems/unique-binary-search-trees/
• https://leetcode.com/problems/maximum-score-from-performing-multiplication-operations/
• https://leetcode.com/problems/minimum-cost-to-cut-a-stick/ https://leetcode.com/problems/minimum-score-triangulation-of-polygon/solution/shi-pin-jiao-ni-yi-bu-bu-si-kao-dong-tai-aty6/
• https://leetcode.com/problems/minimum-cost-to-merge-stones/
• https://leetcode.com/problems/the-score-of-students-solving-math-expression/
• https://leetcode.com/problems/maximum-xor-score-subarray-queries/
• https://leetcode.com/problems/scramble-string/
• https://leetcode.com/problems/burst-balloons/
• https://leetcode.com/problems/strange-printer/
• https://leetcode.com/problems/remove-boxes/
• https://leetcode.com/problems/encode-string-with-shortest-length/
• https://leetcode.com/problems/maximum-number-of-removal-queries-that-can-be-processed-i/ https://leetcode.com/problems/beautiful-arrangement/solution/jiao-ni-yi-bu-bu-si-kao-zhuang-ya-dpcong-c6kd/
• https://leetcode.com/problems/beautiful-arrangement/
• https://leetcode.com/problems/minimum-time-to-break-locks-i/ +duplicate
• https://leetcode.com/problems/minimum-xor-sum-of-two-arrays/ +duplicate
• https://leetcode.com/problems/minimum-moves-to-spread-stones-over-grid/ +duplicate
• https://leetcode.com/problems/maximum-compatibility-score-sum/ +duplicate
• https://leetcode.com/problems/maximize-score-after-n-operations/
• https://leetcode.com/problems/maximum-and-sum-of-array/ +duplicate
• https://leetcode.com/problems/number-of-self-divisible-permutations/
• https://leetcode.com/problems/minimum-time-to-kill-all-monsters/ +duplicate
• https://leetcode.com/problems/campus-bikes-ii/ +duplicate https://leetcode.com/problems/find-the-minimum-cost-array-permutation/solution/zhuang-ya-dpcong-ji-yi-hua-sou-suo-dao-d-s9t5/
• https://leetcode.com/problems/number-of-squareful-arrays/
• https://leetcode.com/problems/special-permutations/
• https://leetcode.com/problems/minimum-incompatibility/
• https://leetcode.com/problems/maximum-number-of-moves-to-kill-all-pawns/
• https://leetcode.com/problems/find-the-minimum-cost-array-permutation/
• https://leetcode.com/problems/find-the-shortest-superstring/
• https://leetcode.com/problems/shortest-path-visiting-all-nodes/
• https://leetcode.com/problems/xun-bao/ +duplicate
• https://leetcode.com/problems/maximum-cost-of-trip-with-k-highways/ https://leetcode.com/problems/maximum-students-taking-exam/solution/jiao-ni-yi-bu-bu-si-kao-dong-tai-gui-hua-9y5k/
• https://leetcode.com/problems/fair-distribution-of-cookies/
• https://leetcode.com/problems/minimum-number-of-work-sessions-to-finish-the-tasks/
• https://leetcode.com/problems/find-minimum-time-to-finish-all-jobs/
• https://leetcode.com/problems/distribute-repeating-integers/
• https://leetcode.com/problems/maximum-students-taking-exam/ +duplicate
• https://leetcode.com/problems/minimum-incompatibility/ +duplicate
• https://leetcode.com/problems/minimum-increments-for-target-multiples-in-an-array/
• https://leetcode.com/problems/count-the-number-of-square-free-subsets/
• https://leetcode.com/problems/the-number-of-good-subsets/
• https://leetcode.com/problems/parallel-courses-ii/
• https://leetcode.com/problems/broken-board-dominoes/ +duplicate
• https://leetcode.com/problems/EJvmW4/
• https://leetcode.com/problems/optimal-account-balancing/
• https://leetcode.com/problems/minimum-number-of-lines-to-cover-points/
• https://leetcode.com/problems/partition-to-k-equal-sum-subsets/
• https://leetcode.com/problems/number-of-ways-to-paint-n-3-grid/
• https://leetcode.com/problems/maximum-product-of-the-length-of-two-palindromic-subsequences/
• https://leetcode.com/problems/matchsticks-to-square/
• https://leetcode.com/problems/painting-a-grid-with-three-different-colors/
• https://leetcode.com/problems/smallest-sufficient-team/
• https://leetcode.com/problems/number-of-ways-to-wear-different-hats-to-each-other/
• https://leetcode.com/problems/can-i-win/
• https://leetcode.com/problems/stickers-to-spell-word/
• https://leetcode.com/problems/select-cells-in-grid-with-maximum-score/ +duplicate
• https://leetcode.com/problems/minimum-cost-to-connect-two-groups-of-points/ +duplicate
• https://leetcode.com/problems/maximum-number-of-groups-getting-fresh-donuts/
• https://leetcode.com/problems/maximize-grid-happiness/
• https://leetcode.com/problems/rMeRt2/
• https://leetcode.com/problems/1ybDKD/
• https://leetcode.com/problems/cnHoX6/
• https://leetcode.com/problems/android-unlock-patterns/
• https://leetcode.com/problems/number-of-ways-to-build-sturdy-brick-wall/
• https://leetcode.com/problems/count-of-integers/
• https://leetcode.com/problems/rotated-digits/
• https://leetcode.com/problems/numbers-at-most-n-given-digit-set/
• https://leetcode.com/problems/number-of-digit-one/
• https://leetcode.com/problems/number-of-2s-in-range-lcci/
• https://leetcode.com/problems/non-negative-integers-without-consecutive-ones/
• https://leetcode.com/problems/count-special-integers/
• https://leetcode.com/problems/numbers-with-repeated-digits/
• https://leetcode.com/problems/count-numbers-with-unique-digits/
• https://leetcode.com/problems/maximum-number-that-sum-of-the-prices-is-less-than-or-equal-to-k/ +duplicate
• https://leetcode.com/problems/number-of-beautiful-integers-in-the-range/
• https://leetcode.com/problems/count-the-number-of-powerful-integers/
• https://leetcode.com/problems/count-stepping-numbers-in-range/
• https://leetcode.com/problems/count-k-reducible-numbers-less-than-n/
• https://leetcode.com/problems/find-all-good-strings/
• https://leetcode.com/problems/smallest-divisible-digit-product-ii/
• https://leetcode.com/problems/stepping-numbers/
• https://leetcode.com/problems/digit-count-in-range/
• https://leetcode.com/problems/count-numbers-with-unique-digits-ii/
• https://leetcode.com/problems/maximum-number-of-balls-in-a-box/
• https://leetcode.com/problems/count-symmetric-integers/
• https://leetcode.com/problems/number-of-people-aware-of-a-secret/
• https://leetcode.com/problems/jump-game-vii/
• https://leetcode.com/problems/first-day-where-you-have-been-in-all-the-rooms/
• https://leetcode.com/problems/find-the-count-of-monotonic-pairs-ii/
• https://leetcode.com/problems/number-of-beautiful-partitions/ +duplicate
• https://leetcode.com/problems/new-21-game/
• https://leetcode.com/problems/minimum-total-distance-traveled/ +duplicate
• https://leetcode.com/problems/find-the-original-typed-string-ii/ +duplicate
• https://leetcode.com/problems/count-of-sub-multisets-with-bounded-sum/ +duplicate
• https://leetcode.com/problems/k-inverse-pairs-array/ +duplicate
• https://leetcode.com/problems/number-of-ways-to-separate-numbers/
• https://leetcode.com/problems/find-all-possible-stable-binary-arrays-ii/
• https://leetcode.com/problems/minimum-difficulty-of-a-job-schedule/ +duplicate
• https://leetcode.com/problems/beautiful-towers-ii/ +duplicate
• https://leetcode.com/problems/minimum-number-of-visited-cells-in-a-grid/ +duplicate
• https://leetcode.com/problems/maximum-number-of-books-you-can-take/
• https://leetcode.com/problems/minimum-number-of-coins-for-fruits/ +duplicate
• https://leetcode.com/problems/jump-game-vi/
• https://leetcode.com/problems/constrained-subsequence-sum/
• https://leetcode.com/problems/guess-number-higher-or-lower-ii/ +duplicate
• https://leetcode.com/problems/delivering-boxes-from-storage-to-ports/
• https://leetcode.com/problems/minimum-total-distance-traveled/ +duplicate
• https://leetcode.com/problems/minimum-sum-of-values-by-dividing-array/ +duplicate
• https://leetcode.com/problems/find-maximum-non-decreasing-array-length/
• https://leetcode.com/problems/minimum-number-of-coins-for-fruits-ii/
• https://leetcode.com/problems/best-team-with-no-conflicts/ +duplicate
• https://leetcode.com/problems/longest-increasing-subsequence-ii/ +duplicate
• https://leetcode.com/problems/maximum-number-of-jumps-to-reach-the-last-index/
• https://leetcode.com/problems/maximum-number-of-jumps-to-reach-the-last-index/ +duplicate
• https://leetcode.com/problems/maximum-balanced-subsequence-sum/
• https://leetcode.com/problems/subarrays-distinct-element-sum-of-squares-ii/
• https://leetcode.com/problems/maximize-subarray-sum-after-removing-all-occurrences-of-one-element/
• https://leetcode.com/problems/word-break/ +duplicate
• https://leetcode.com/problems/word-break-ii/
• https://leetcode.com/problems/re-space-lcci/
• https://leetcode.com/problems/concatenated-words/
• https://leetcode.com/problems/minimum-cost-to-convert-string-ii/ +duplicate
• https://leetcode.com/problems/maximum-number-of-points-with-cost/ +duplicate
• https://leetcode.com/problems/maximum-strictly-increasing-cells-in-a-matrix/
• https://leetcode.com/problems/maximum-total-reward-using-operations-ii/
• https://leetcode.com/problems/check-if-there-is-a-valid-parentheses-string-path/ +duplicate
• https://leetcode.com/problems/construct-string-with-minimum-cost/
• https://leetcode.com/problems/minimum-number-of-valid-strings-to-form-target-ii/
• https://leetcode.com/problems/NfY1m5/
• https://leetcode.com/problems/make-array-non-decreasing-or-non-increasing/
• https://leetcode.com/problems/diameter-of-binary-tree/
• https://leetcode.com/problems/longest-univalue-path/
• https://leetcode.com/problems/binary-tree-maximum-path-sum/
• https://leetcode.com/problems/amount-of-time-for-binary-tree-to-be-infected/
• https://leetcode.com/problems/longest-path-with-different-adjacent-characters/
• https://leetcode.com/problems/find-minimum-diameter-after-merging-two-trees/
• https://leetcode.com/problems/count-subtrees-with-max-distance-between-cities/
• https://leetcode.com/problems/difference-between-maximum-and-minimum-price-sum/
• https://leetcode.com/problems/diameter-of-n-ary-tree/
• https://leetcode.com/problems/tree-diameter/
• https://leetcode.com/problems/binary-tree-longest-consecutive-sequence-ii/
• https://leetcode.com/problems/house-robber-iii/
• https://leetcode.com/problems/minimize-the-total-price-of-the-trips/
• https://leetcode.com/problems/choose-edges-to-maximize-score-in-a-tree/
• https://leetcode.com/problems/binary-tree-cameras/ https://leetcode.com/problems/sum-of-distances-in-tree/solution/tu-jie-yi-zhang-tu-miao-dong-huan-gen-dp-6bgb/
• https://leetcode.com/problems/sum-of-distances-in-tree/
• https://leetcode.com/problems/count-number-of-possible-root-nodes/
• https://leetcode.com/problems/minimum-edge-reversals-so-every-node-is-reachable/
• https://leetcode.com/problems/minimum-height-trees/ +duplicate
• https://leetcode.com/problems/time-taken-to-mark-all-nodes/
• https://leetcode.com/problems/maximum-score-after-applying-operations-on-a-tree/
• https://leetcode.com/problems/find-the-maximum-sum-of-node-values/ +duplicate
• https://leetcode.com/problems/maximum-points-after-collecting-coins-from-all-nodes/
• https://leetcode.com/problems/count-ways-to-build-rooms-in-an-ant-colony/
• https://leetcode.com/problems/maximize-sum-of-weights-after-edge-removals/
• https://leetcode.com/problems/er-cha-shu-ren-wu-diao-du/
• https://leetcode.com/problems/er-cha-shu-ran-se-UGC/
• https://leetcode.com/problems/U7WvvU/
• https://leetcode.com/problems/minimum-flips-in-binary-tree-to-get-result/
• https://leetcode.com/problems/shortest-distance-after-road-addition-queries-i/ +duplicate
• https://leetcode.com/problems/cheapest-flights-within-k-stops/ +duplicate
• https://leetcode.com/problems/number-of-restricted-paths-from-first-to-last-node/ +duplicate
• https://leetcode.com/problems/parallel-courses-iii/ +duplicate
• https://leetcode.com/problems/number-of-ways-to-arrive-at-destination/ +duplicate
• https://leetcode.com/problems/largest-color-value-in-a-directed-graph/ +duplicate
• https://leetcode.com/problems/minimum-cost-to-reach-destination-in-time/ +duplicate
• https://leetcode.com/problems/chuan-di-xin-xi/
• https://leetcode.com/problems/the-most-similar-path-in-a-graph/
• https://leetcode.com/problems/divisor-game/
• https://leetcode.com/problems/stone-game/
• https://leetcode.com/problems/predict-the-winner/
• https://leetcode.com/problems/stone-game-iv/
• https://leetcode.com/problems/stone-game-vii/
• https://leetcode.com/problems/stone-game-iii/
• https://leetcode.com/problems/stone-game-ii/
• https://leetcode.com/problems/stone-game-v/
• https://leetcode.com/problems/can-i-win/ +duplicate
• https://leetcode.com/problems/stone-game-viii/
• https://leetcode.com/problems/cat-and-mouse/
• https://leetcode.com/problems/flip-game-ii/
• https://leetcode.com/problems/knight-probability-in-chessboard/
• https://leetcode.com/problems/new-21-game/ +duplicate
• https://leetcode.com/problems/probability-of-a-two-boxes-having-the-same-number-of-distinct-balls/
• https://leetcode.com/problems/soup-servings/
• https://leetcode.com/problems/nge-tou-zi-de-dian-shu-lcof/
• https://leetcode.com/problems/toss-strange-coins/ https://leetcode.com/problems/shortest-common-supersequence/solution/cong-di-gui-dao-di-tui-jiao-ni-yi-bu-bu-auy8z/
• https://leetcode.com/problems/largest-divisible-subset/ +duplicate
• https://leetcode.com/problems/form-largest-integer-with-digits-that-add-up-to-target/ +duplicate
• https://leetcode.com/problems/shortest-common-supersequence/ +duplicate
• https://leetcode.com/problems/find-the-shortest-superstring/ +duplicate
• https://leetcode.com/problems/smallest-sufficient-team/ +duplicate
• https://leetcode.com/problems/find-the-largest-palindrome-divisible-by-k/
• https://leetcode.com/problems/find-the-minimum-cost-array-permutation/ +duplicate
• https://leetcode.com/problems/minimum-cost-good-caption/ +duplicate
• https://leetcode.com/problems/smallest-divisible-digit-product-ii/ +duplicate
• https://leetcode.com/problems/coin-path/
• https://leetcode.com/problems/encode-string-with-shortest-length/ +duplicate
• https://leetcode.com/problems/find-pivot-index/
• https://leetcode.com/problems/find-the-middle-index-in-array/
• https://leetcode.com/problems/number-of-ways-to-split-array/
• https://leetcode.com/problems/minimum-average-difference/
• https://leetcode.com/problems/maximum-score-after-splitting-a-string/
• https://leetcode.com/problems/longest-subarray-of-1s-after-deleting-one-element/ +duplicate
• https://leetcode.com/problems/longest-mountain-in-array/ +duplicate
• https://leetcode.com/problems/minimum-sum-of-mountain-triplets-ii/
• https://leetcode.com/problems/minimum-penalty-for-a-shop/
• https://leetcode.com/problems/number-of-good-ways-to-split-a-string/
• https://leetcode.com/problems/make-array-elements-equal-to-zero/
• https://leetcode.com/problems/maximum-value-of-an-ordered-triplet-ii/
• https://leetcode.com/problems/best-time-to-buy-and-sell-stock-iii/ +duplicate
• https://leetcode.com/problems/number-of-ways-to-select-buildings/ +duplicate
• https://leetcode.com/problems/maximum-sum-of-two-non-overlapping-subarrays/
• https://leetcode.com/problems/maximum-sum-of-3-non-overlapping-subarrays/
• https://leetcode.com/problems/find-all-good-indices/
• https://leetcode.com/problems/find-good-days-to-rob-the-bank/
• https://leetcode.com/problems/flip-string-to-monotone-increasing/
• https://leetcode.com/problems/increasing-triplet-subsequence/
• https://leetcode.com/problems/minimum-cost-to-make-all-characters-equal/
• https://leetcode.com/problems/minimum-deletions-to-make-string-balanced/
• https://leetcode.com/problems/maximum-subarray-sum-with-one-deletion/ +duplicate
• https://leetcode.com/problems/trapping-rain-water/ +duplicate
• https://leetcode.com/problems/difference-of-number-of-distinct-values-on-diagonals/
• https://leetcode.com/problems/find-two-non-overlapping-sub-arrays-each-with-target-sum/
• https://leetcode.com/problems/maximum-or/ +duplicate
• https://leetcode.com/problems/minimum-number-of-removals-to-make-mountain-array/ +duplicate
• https://leetcode.com/problems/minimum-number-of-flips-to-make-the-binary-string-alternating/ +duplicate
• https://leetcode.com/problems/product-of-array-except-self/
• https://leetcode.com/problems/construct-product-matrix/
• https://leetcode.com/problems/find-the-maximum-factor-score-of-array/
• https://leetcode.com/problems/minimum-time-to-remove-all-cars-containing-illegal-goods/ +duplicate
• https://leetcode.com/problems/count-palindromic-subsequences/
• https://leetcode.com/problems/minimum-difference-in-sums-after-removal-of-elements/
• https://leetcode.com/problems/subsequence-with-the-minimum-score/ +duplicate
• https://leetcode.com/problems/count-special-quadruplets/
• https://leetcode.com/problems/count-increasing-quadruplets/
• https://leetcode.com/problems/find-the-lexicographically-smallest-valid-sequence/ +duplicate
• https://leetcode.com/problems/count-special-subsequences/
• https://leetcode.com/problems/find-the-occurrence-of-first-almost-equal-substring/
• https://leetcode.com/problems/find-the-maximum-sequence-value-of-array/ +duplicate
• https://leetcode.com/problems/maximum-value-sum-by-placing-three-rooks-ii/ +duplicate
• https://leetcode.com/problems/maximize-subarray-sum-after-removing-all-occurrences-of-one-element/ +duplicate
• https://leetcode.com/problems/maximize-the-number-of-partitions-after-operations/
• https://leetcode.com/problems/max-consecutive-ones-ii/ +duplicate
• https://leetcode.com/problems/maximum-subarray-sum-after-one-operation/ +duplicate
• https://leetcode.com/problems/best-time-to-buy-and-sell-stock/ +duplicate
• https://leetcode.com/problems/integer-replacement/
• https://leetcode.com/problems/minimum-number-of-operations-to-make-x-and-y-equal/
• https://leetcode.com/problems/minimum-operations-to-convert-number/
• https://leetcode.com/problems/broken-calculator/
• https://leetcode.com/problems/minimum-number-of-days-to-eat-n-oranges/
• https://leetcode.com/problems/digit-operations-to-make-two-integers-equal/ +duplicate
• https://leetcode.com/problems/jump-game-iii/
• https://leetcode.com/problems/maximum-number-of-jumps-to-reach-the-last-index/ +duplicate
• https://leetcode.com/problems/frog-jump/ +duplicate
• https://leetcode.com/problems/jump-game-v/
• https://leetcode.com/problems/jump-game-vii/ +duplicate
• https://leetcode.com/problems/jump-game-vi/ +duplicate
• https://leetcode.com/problems/odd-even-jump/
• https://leetcode.com/problems/minimum-jumps-to-reach-home/
• https://leetcode.com/problems/zui-xiao-tiao-yue-ci-shu/
• https://leetcode.com/problems/meChtZ/
• https://leetcode.com/problems/coin-path/ +duplicate
• https://leetcode.com/problems/jump-game-viii/
• https://leetcode.com/problems/sort-integers-by-the-power-value/
• https://leetcode.com/problems/binary-trees-with-factors/
• https://leetcode.com/problems/distinct-subsequences-ii/
• https://leetcode.com/problems/candy/
• https://leetcode.com/problems/2-keys-keyboard/
• https://leetcode.com/problems/shopping-offers/
• https://leetcode.com/problems/unique-substrings-in-wraparound-string/ +duplicate
• https://leetcode.com/problems/total-appeal-of-a-string/
• https://leetcode.com/problems/count-unique-characters-of-all-substrings-of-a-given-string/
• https://leetcode.com/problems/decremental-string-concatenation/
• https://leetcode.com/problems/number-of-strings-which-can-be-rearranged-to-contain-substring/
• https://leetcode.com/problems/number-of-ways-to-reorder-array-to-get-same-bst/
• https://leetcode.com/problems/race-car/
• https://leetcode.com/problems/number-of-music-playlists/
• https://leetcode.com/problems/pizza-with-3n-slices/ +duplicate
• https://leetcode.com/problems/number-of-unique-good-subsequences/
• https://leetcode.com/problems/valid-permutations-for-di-sequence/
• https://leetcode.com/problems/substring-with-largest-variance/
• https://leetcode.com/problems/minimum-cost-to-change-the-final-value-of-expression/
• https://leetcode.com/problems/string-compression-ii/
• https://leetcode.com/problems/least-operators-to-express-number/
• https://leetcode.com/problems/make-the-xor-of-all-segments-equal-to-zero/
• https://leetcode.com/problems/check-if-an-original-string-exists-given-two-encoded-strings/
• https://leetcode.com/problems/minimum-time-to-make-array-sum-at-most-x/
• https://leetcode.com/problems/qie-fen-shu-zu/
• https://leetcode.com/problems/Up5XYM/
• https://leetcode.com/problems/7rLGCR/ +duplicate
• https://leetcode.com/problems/Y1VbOX/
• https://leetcode.com/problems/3aqs1c/
• https://leetcode.com/problems/sum-of-consecutive-subsequences/
• https://leetcode.com/problems/number-of-ways-to-build-house-of-cards/
• https://leetcode.com/problems/the-number-of-beautiful-subsets/
• https://leetcode.com/problems/count-the-number-of-k-free-subsets/

Data Structure

https://leetcode.com/problems/two-sum/solution/dong-hua-cong-liang-shu-zhi-he-zhong-wo-0yvmj/

• https://leetcode.com/problems/two-sum/
• https://leetcode.com/problems/number-of-good-pairs/
• https://leetcode.com/problems/number-of-pairs-of-interchangeable-rectangles/
• https://leetcode.com/problems/contains-duplicate-ii/
• https://leetcode.com/problems/best-time-to-buy-and-sell-stock/ +duplicate
• https://leetcode.com/problems/maximum-distance-in-arrays/
• https://leetcode.com/problems/max-pair-sum-in-an-array/
• https://leetcode.com/problems/max-sum-of-a-pair-with-equal-sum-of-digits/
• https://leetcode.com/problems/max-number-of-k-sum-pairs/
• https://leetcode.com/problems/minimum-consecutive-cards-to-pick-up/
• https://leetcode.com/problems/pairs-of-songs-with-total-durations-divisible-by-60/
• https://leetcode.com/problems/count-pairs-that-form-a-complete-day-ii/
• https://leetcode.com/problems/count-pairs-of-similar-strings/
• https://leetcode.com/problems/number-of-beautiful-pairs/
• https://leetcode.com/problems/maximum-value-of-an-ordered-triplet-ii/ +duplicate
• https://leetcode.com/problems/best-sightseeing-pair/
• https://leetcode.com/problems/count-nice-pairs-in-an-array/
• https://leetcode.com/problems/find-indices-with-index-and-value-difference-ii/
• https://leetcode.com/problems/maximum-sum-of-two-non-overlapping-subarrays/ +duplicate
• https://leetcode.com/problems/maximize-win-from-two-segments/ +duplicate
• https://leetcode.com/problems/count-special-quadruplets/ +duplicate
• https://leetcode.com/problems/count-special-subsequences/ +duplicate
• https://leetcode.com/problems/count-almost-equal-pairs-ii/
• https://leetcode.com/problems/two-sum-bsts/
• https://leetcode.com/problems/number-of-divisible-triplet-sums/
• https://leetcode.com/problems/largest-positive-integer-that-exists-with-its-negative/
• https://leetcode.com/problems/pairs-with-sum-lcci/
• https://leetcode.com/problems/4sum-ii/
• https://leetcode.com/problems/identify-the-largest-outlier-in-an-array/
• https://leetcode.com/problems/minimum-sum-of-mountain-triplets-ii/ +duplicate
• https://leetcode.com/problems/unique-length-3-palindromic-subsequences/
• https://leetcode.com/problems/right-triangles/
• https://leetcode.com/problems/maximum-value-of-an-ordered-triplet-ii/ +duplicate
• https://leetcode.com/problems/number-of-boomerangs/
• https://leetcode.com/problems/132-pattern/ +duplicate
• https://leetcode.com/problems/count-pairs-of-connectable-servers-in-a-weighted-tree-network/
• https://leetcode.com/problems/maximum-score-of-a-node-sequence/ +duplicate
• https://leetcode.com/problems/count-valid-paths-in-a-tree/
• https://leetcode.com/problems/count-increasing-quadruplets/ +duplicate
• https://leetcode.com/problems/maximum-value-sum-by-placing-three-rooks-ii/ +duplicate
• https://leetcode.com/problems/maximum-increasing-triplet-value/ https://leetcode.com/problems/range-sum-query-immutable/solution/qian-zhui-he-ji-qi-kuo-zhan-fu-ti-dan-py-vaar/
• https://leetcode.com/problems/range-sum-query-immutable/
• https://leetcode.com/problems/sum-of-variable-length-subarrays/
• https://leetcode.com/problems/count-vowel-strings-in-ranges/
• https://leetcode.com/problems/special-array-ii/
• https://leetcode.com/problems/maximum-absolute-sum-of-any-subarray/ +duplicate
• https://leetcode.com/problems/longest-subsequence-with-limited-sum/ +duplicate
• https://leetcode.com/problems/shift-distance-between-two-strings/
• https://leetcode.com/problems/plates-between-candles/
• https://leetcode.com/problems/can-you-eat-your-favorite-candy-on-your-favorite-day/
• https://leetcode.com/problems/maximum-subarray/ +duplicate https://leetcode.com/problems/maximum-subarray/solution/qian-zhui-he-zuo-fa-ben-zhi-shi-mai-mai-abu71/
• https://leetcode.com/problems/count-odd-numbers-in-an-interval-range/ https://leetcode.com/problems/subarray-sum-equals-k/solution/qian-zhui-he-ha-xi-biao-cong-liang-ci-bi-4mwr/
• https://leetcode.com/problems/binary-subarrays-with-sum/ +duplicate
• https://leetcode.com/problems/subarray-sum-equals-k/
• https://leetcode.com/problems/number-of-sub-arrays-with-odd-sum/
• https://leetcode.com/problems/subarray-sums-divisible-by-k/
• https://leetcode.com/problems/continuous-subarray-sum/
• https://leetcode.com/problems/path-sum-iii/
• https://leetcode.com/problems/count-the-number-of-beautiful-subarrays/ +duplicate
• https://leetcode.com/problems/contiguous-array/
• https://leetcode.com/problems/find-longest-subarray-lcci/
• https://leetcode.com/problems/maximum-good-subarray-sum/
• https://leetcode.com/problems/find-two-non-overlapping-sub-arrays-each-with-target-sum/ +duplicate
• https://leetcode.com/problems/maximum-number-of-non-overlapping-subarrays-with-sum-equals-target/
• https://leetcode.com/problems/longest-well-performing-interval/ +duplicate
• https://leetcode.com/problems/maximum-subarray-sum-with-length-divisible-by-k/
• https://leetcode.com/problems/count-subarrays-with-median-k/
• https://leetcode.com/problems/make-sum-divisible-by-p/
• https://leetcode.com/problems/count-of-interesting-subarrays/
• https://leetcode.com/problems/count-triplets-that-can-form-two-arrays-of-equal-xor/ +duplicate
• https://leetcode.com/problems/maximum-number-of-ways-to-partition-an-array/
• https://leetcode.com/problems/count-beautiful-substrings-ii/
• https://leetcode.com/problems/maximum-size-subarray-sum-equals-k/
• https://leetcode.com/problems/split-array-with-equal-sum/
• https://leetcode.com/problems/widest-pair-of-indices-with-equal-range-sum/
• https://leetcode.com/problems/number-of-substrings-with-fixed-ratio/
• https://leetcode.com/problems/number-of-divisible-substrings/
• https://leetcode.com/problems/minimum-positive-sum-subarray/ https://leetcode.com/problems/minimum-operations-to-make-all-array-elements-equal/solution/yi-tu-miao-dong-pai-xu-qian-zhui-he-er-f-nf55/
• https://leetcode.com/problems/sum-of-absolute-differences-in-a-sorted-array/
• https://leetcode.com/problems/sum-of-distances/
• https://leetcode.com/problems/minimum-operations-to-make-all-array-elements-equal/
• https://leetcode.com/problems/apply-operations-to-maximize-frequency-score/ +duplicate
• https://leetcode.com/problems/minimum-adjacent-swaps-for-k-consecutive-ones/
• https://leetcode.com/problems/minimum-moves-to-pick-k-ones/
• https://leetcode.com/problems/can-make-palindrome-from-substring/
• https://leetcode.com/problems/find-the-longest-substring-containing-vowels-in-even-counts/
• https://leetcode.com/problems/find-longest-awesome-substring/
• https://leetcode.com/problems/number-of-wonderful-substrings/
• https://leetcode.com/problems/count-paths-that-can-form-a-palindrome-in-a-tree/
• https://leetcode.com/problems/xor-queries-of-a-subarray/ +duplicate
• https://leetcode.com/problems/range-product-queries-of-powers/ +duplicate
• https://leetcode.com/problems/largest-magic-square/
• https://leetcode.com/problems/get-biggest-three-rhombus-sums-in-a-grid/
• https://leetcode.com/problems/maximum-sum-of-two-non-overlapping-subarrays/ +duplicate
• https://leetcode.com/problems/maximum-trailing-zeros-in-a-cornered-path/
• https://leetcode.com/problems/ways-to-split-array-into-three-subarrays/ +duplicate
• https://leetcode.com/problems/sum-of-floored-pairs/
• https://leetcode.com/problems/max-sum-of-rectangle-no-larger-than-k/
• https://leetcode.com/problems/sum-of-total-strength-of-wizards/ +duplicate
• https://leetcode.com/problems/maximum-difference-between-even-and-odd-frequency-ii/
• https://leetcode.com/problems/palindrome-rearrangement-queries/
• https://leetcode.com/problems/number-of-same-end-substrings/
• https://leetcode.com/problems/maximize-the-beauty-of-the-garden/
• https://leetcode.com/problems/minimum-relative-loss-after-buying-chocolates/ +duplicate https://leetcode.com/problems/range-sum-query-2d-immutable/solution/tu-jie-yi-zhang-tu-miao-dong-er-wei-qian-84qp/
• https://leetcode.com/problems/range-sum-query-2d-immutable/
• https://leetcode.com/problems/matrix-block-sum/
• https://leetcode.com/problems/count-submatrices-with-top-left-element-and-sum-less-than-k/
• https://leetcode.com/problems/find-kth-largest-xor-coordinate-value/
• https://leetcode.com/problems/count-submatrices-with-equal-frequency-of-x-and-y/
• https://leetcode.com/problems/maximum-side-length-of-a-square-with-sum-less-than-or-equal-to-threshold/
• https://leetcode.com/problems/maximal-square/ +duplicate
• https://leetcode.com/problems/count-square-submatrices-with-all-ones/ +duplicate
• https://leetcode.com/problems/count-submatrices-with-all-ones/ +duplicate
• https://leetcode.com/problems/number-of-submatrices-that-sum-to-target/
• https://leetcode.com/problems/maximum-difference-score-in-a-grid/ +duplicate https://leetcode.com/problems/car-pooling/solution/suan-fa-xiao-ke-tang-chai-fen-shu-zu-fu-9d4ra/ https://leetcode.com/problems/stamping-the-grid/solution/wu-nao-zuo-fa-er-wei-qian-zhui-he-er-wei-zwiu/
• https://leetcode.com/problems/points-that-intersect-with-cars/
• https://leetcode.com/problems/check-if-all-the-integers-in-a-range-are-covered/
• https://leetcode.com/problems/maximum-population-year/
• https://leetcode.com/problems/count-tested-devices-after-test-operations/
• https://leetcode.com/problems/car-pooling/
• https://leetcode.com/problems/corporate-flight-bookings/
• https://leetcode.com/problems/zero-array-transformation-i/
• https://leetcode.com/problems/merge-intervals/
• https://leetcode.com/problems/insert-interval/
• https://leetcode.com/problems/my-calendar-iii/
• https://leetcode.com/problems/divide-intervals-into-minimum-number-of-groups/
• https://leetcode.com/problems/shifting-letters-ii/
• https://leetcode.com/problems/minimum-number-of-k-consecutive-bit-flips/
• https://leetcode.com/problems/maximum-sum-obtained-of-any-permutation/
• https://leetcode.com/problems/minimum-number-of-increments-on-subarrays-to-form-a-target-array/
• https://leetcode.com/problems/zero-array-transformation-ii/
• https://leetcode.com/problems/describe-the-painting/
• https://leetcode.com/problems/minimum-array-changes-to-make-differences-equal/
• https://leetcode.com/problems/number-of-flowers-in-full-bloom/
• https://leetcode.com/problems/apply-operations-to-make-all-array-elements-equal-to-zero/
• https://leetcode.com/problems/minimum-operations-to-make-array-equal-to-target/
• https://leetcode.com/problems/smallest-rotation-with-highest-score/
• https://leetcode.com/problems/maximum-frequency-of-an-element-after-performing-operations-ii/ +duplicate
• https://leetcode.com/problems/maximize-the-minimum-powered-city/ +duplicate
• https://leetcode.com/problems/minimum-moves-to-make-array-complementary/
• https://leetcode.com/problems/zero-array-transformation-iii/
• https://leetcode.com/problems/count-the-number-of-houses-at-a-certain-distance-ii/
• https://leetcode.com/problems/meeting-rooms-ii/
• https://leetcode.com/problems/range-addition/
• https://leetcode.com/problems/maximum-number-of-people-that-can-be-caught-in-tag/
• https://leetcode.com/problems/employee-free-time/
• https://leetcode.com/problems/brightest-position-on-street/
• https://leetcode.com/problems/average-height-of-buildings-in-each-segment/
• https://leetcode.com/problems/count-positions-on-street-with-required-brightness/
• https://leetcode.com/problems/maximum-number-of-intersections-on-the-chart/
• https://leetcode.com/problems/maximum-total-area-occupied-by-pistons/ https://leetcode.com/problems/stamping-the-grid/solution/wu-nao-zuo-fa-er-wei-qian-zhui-he-er-wei-zwiu/
• https://leetcode.com/problems/increment-submatrices-by-one/
• https://leetcode.com/problems/rectangle-area-ii/
• https://leetcode.com/problems/stamping-the-grid/
• https://leetcode.com/problems/xepqZ5/
• https://leetcode.com/problems/build-an-array-with-stack-operations/
• https://leetcode.com/problems/backspace-string-compare/ +duplicate
• https://leetcode.com/problems/baseball-game/
• https://leetcode.com/problems/removing-stars-from-a-string/
• https://leetcode.com/problems/design-browser-history/
• https://leetcode.com/problems/validate-stack-sequences/
• https://leetcode.com/problems/find-mirror-score-of-a-string/
• https://leetcode.com/problems/simplify-path/
• https://leetcode.com/problems/lexicographically-minimum-string-after-removing-stars/
• https://leetcode.com/problems/min-stack/
• https://leetcode.com/problems/design-a-stack-with-increment-operation/
• https://leetcode.com/problems/exclusive-time-of-functions/
• https://leetcode.com/problems/using-a-robot-to-print-the-lexicographically-smallest-string/
• https://leetcode.com/problems/maximum-frequency-stack/
• https://leetcode.com/problems/dinner-plate-stacks/
• https://leetcode.com/problems/minimum-time-to-complete-all-tasks/
• https://leetcode.com/problems/max-stack/
• https://leetcode.com/problems/minimum-string-length-after-removing-substrings/
• https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string/
• https://leetcode.com/problems/make-the-string-great/
• https://leetcode.com/problems/check-if-word-is-valid-after-substitutions/
• https://leetcode.com/problems/minimum-deletions-to-make-array-beautiful/
• https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string-ii/
• https://leetcode.com/problems/count-collisions-on-a-road/
• https://leetcode.com/problems/asteroid-collision/
• https://leetcode.com/problems/maximum-score-from-removing-substrings/
• https://leetcode.com/problems/replace-non-coprime-numbers-in-array/
• https://leetcode.com/problems/robot-collisions/
• https://leetcode.com/problems/valid-parentheses/
• https://leetcode.com/problems/minimum-add-to-make-parentheses-valid/
• https://leetcode.com/problems/remove-outermost-parentheses/
• https://leetcode.com/problems/maximum-nesting-depth-of-the-parentheses/
• https://leetcode.com/problems/reverse-substrings-between-each-pair-of-parentheses/
• https://leetcode.com/problems/score-of-parentheses/
• https://leetcode.com/problems/minimum-remove-to-make-valid-parentheses/
• https://leetcode.com/problems/minimum-number-of-swaps-to-make-the-string-balanced/
• https://leetcode.com/problems/valid-parenthesis-string/
• https://leetcode.com/problems/maximum-nesting-depth-of-two-valid-parentheses-strings/
• https://leetcode.com/problems/minimum-insertions-to-balance-a-parentheses-string/
• https://leetcode.com/problems/check-if-a-parentheses-string-can-be-valid/
• https://leetcode.com/problems/longest-valid-parentheses/
• https://leetcode.com/problems/evaluate-reverse-polish-notation/
• https://leetcode.com/problems/clumsy-factorial/
• https://leetcode.com/problems/basic-calculator/
• https://leetcode.com/problems/basic-calculator-ii/
• https://leetcode.com/problems/number-of-atoms/
• https://leetcode.com/problems/parsing-a-boolean-expression/
• https://leetcode.com/problems/tag-validator/
• https://leetcode.com/problems/parse-lisp-expression/
• https://leetcode.com/problems/brace-expansion-ii/
• https://leetcode.com/problems/minimum-cost-to-change-the-final-value-of-expression/ +duplicate
• https://leetcode.com/problems/basic-calculator-iv/
• https://leetcode.com/problems/ternary-expression-parser/
• https://leetcode.com/problems/basic-calculator-iii/
• https://leetcode.com/problems/brace-expansion/
• https://leetcode.com/problems/build-binary-expression-tree-from-infix-expression/
• https://leetcode.com/problems/design-an-expression-tree-with-evaluate-function/
• https://leetcode.com/problems/design-a-text-editor/
• https://leetcode.com/problems/number-of-recent-calls/
• https://leetcode.com/problems/reveal-cards-in-increasing-order/
• https://leetcode.com/problems/dota2-senate/
• https://leetcode.com/problems/moving-average-from-data-stream/
• https://leetcode.com/problems/design-hit-counter/
• https://leetcode.com/problems/design-phone-directory/
• https://leetcode.com/problems/first-unique-number/
• https://leetcode.com/problems/time-taken-to-cross-the-door/
• https://leetcode.com/problems/implement-stack-using-queues/
• https://leetcode.com/problems/implement-queue-using-stacks/
• https://leetcode.com/problems/design-circular-queue/
• https://leetcode.com/problems/design-circular-deque/
• https://leetcode.com/problems/design-front-middle-back-queue/
• https://leetcode.com/problems/faulty-keyboard/
• https://leetcode.com/problems/sliding-window-maximum/
• https://leetcode.com/problems/dui-lie-de-zui-da-zhi-lcof/
• https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit/ +duplicate
• https://leetcode.com/problems/continuous-subarrays/ +duplicate
• https://leetcode.com/problems/maximum-number-of-robots-within-budget/
• https://leetcode.com/problems/shortest-subarray-with-sum-at-least-k/
• https://leetcode.com/problems/max-value-of-equation/
• https://leetcode.com/problems/maximum-number-of-tasks-you-can-assign/ +duplicate
• https://leetcode.com/problems/minimum-number-of-coins-for-fruits/ +duplicate
• https://leetcode.com/problems/jump-game-vi/ +duplicate
• https://leetcode.com/problems/constrained-subsequence-sum/ +duplicate
• https://leetcode.com/problems/guess-number-higher-or-lower-ii/ +duplicate
• https://leetcode.com/problems/delivering-boxes-from-storage-to-ports/ +duplicate
• https://leetcode.com/problems/minimum-sum-of-values-by-dividing-array/ +duplicate
• https://leetcode.com/problems/find-maximum-non-decreasing-array-length/ +duplicate
• https://leetcode.com/problems/minimum-number-of-coins-for-fruits-ii/ +duplicate
• https://leetcode.com/problems/last-stone-weight/
• https://leetcode.com/problems/final-array-state-after-k-multiplication-operations-i/
• https://leetcode.com/problems/take-gifts-from-the-richest-pile/
• https://leetcode.com/problems/smallest-number-in-infinite-set/
• https://leetcode.com/problems/maximal-score-after-applying-k-operations/
• https://leetcode.com/problems/minimum-operations-to-exceed-threshold-value-ii/
• https://leetcode.com/problems/remove-stones-to-minimize-the-total/
• https://leetcode.com/problems/kth-largest-element-in-a-stream/
• https://leetcode.com/problems/k-th-nearest-obstacle-queries/
• https://leetcode.com/problems/seat-reservation-manager/
• https://leetcode.com/problems/minimum-operations-to-halve-array-sum/
• https://leetcode.com/problems/maximum-product-after-k-increments/
• https://leetcode.com/problems/minimum-number-of-seconds-to-make-mountain-height-zero/ +duplicate
• https://leetcode.com/problems/the-number-of-the-smallest-unoccupied-chair/
• https://leetcode.com/problems/number-of-orders-in-the-backlog/
• https://leetcode.com/problems/divide-intervals-into-minimum-number-of-groups/ +duplicate
• https://leetcode.com/problems/total-cost-to-hire-k-workers/
• https://leetcode.com/problems/single-threaded-cpu/
• https://leetcode.com/problems/design-task-manager/
• https://leetcode.com/problems/maximum-average-pass-ratio/
• https://leetcode.com/problems/maximum-spending-after-buying-items/
• https://leetcode.com/problems/process-tasks-using-servers/
• https://leetcode.com/problems/meeting-rooms-iii/
• https://leetcode.com/problems/meeting-rooms-ii/ +duplicate
• https://leetcode.com/problems/minimum-cost-to-connect-sticks/
• https://leetcode.com/problems/merge-k-sorted-lists/
• https://leetcode.com/problems/design-twitter/
• https://leetcode.com/problems/ipo/
• https://leetcode.com/problems/maximum-number-of-eaten-apples/
• https://leetcode.com/problems/swim-in-rising-water/ +duplicate
• https://leetcode.com/problems/path-with-minimum-effort/ +duplicate
• https://leetcode.com/problems/construct-target-array-with-multiple-sums/
• https://leetcode.com/problems/maximum-number-of-events-that-can-be-attended/
• https://leetcode.com/problems/maximum-profit-in-job-scheduling/ +duplicate
• https://leetcode.com/problems/smallest-range-covering-elements-from-k-lists/ +duplicate
• https://leetcode.com/problems/maximum-subsequence-score/
• https://leetcode.com/problems/maximum-performance-of-a-team/
• https://leetcode.com/problems/maximum-number-of-points-from-grid-queries/
• https://leetcode.com/problems/minimum-difference-in-sums-after-removal-of-elements/ +duplicate
• https://leetcode.com/problems/minimum-cost-to-hire-k-workers/
• https://leetcode.com/problems/find-servers-that-handled-most-number-of-requests/
• https://leetcode.com/problems/minimum-interval-to-include-each-query/
• https://leetcode.com/problems/the-skyline-problem/
• https://leetcode.com/problems/trapping-rain-water-ii/
• https://leetcode.com/problems/find-building-where-alice-and-bob-can-meet/
• https://leetcode.com/problems/smallest-substring-with-identical-characters-ii/ +duplicate
• https://leetcode.com/problems/minimum-time-to-complete-all-tasks/ +duplicate
• https://leetcode.com/problems/final-array-state-after-k-multiplication-operations-ii/
• https://leetcode.com/problems/minimize-deviation-in-array/
• https://leetcode.com/problems/minimum-number-of-visited-cells-in-a-grid/ +duplicate
• https://leetcode.com/problems/time-to-cross-a-bridge/
• https://leetcode.com/problems/o8SXZn/
• https://leetcode.com/problems/minimum-time-to-build-blocks/
• https://leetcode.com/problems/string-without-aaa-or-bbb/
• https://leetcode.com/problems/reorganize-string/
• https://leetcode.com/problems/distant-barcodes/
• https://leetcode.com/problems/maximum-number-of-weeks-for-which-you-can-work/
• https://leetcode.com/problems/longest-happy-string/
• https://leetcode.com/problems/replace-question-marks-in-string-to-minimize-its-value/
• https://leetcode.com/problems/task-scheduler/
• https://leetcode.com/problems/rearrange-string-k-distance-apart/
• https://leetcode.com/problems/ugly-number-ii/
• https://leetcode.com/problems/kth-smallest-element-in-a-sorted-matrix/ +duplicate
• https://leetcode.com/problems/find-k-pairs-with-smallest-sums/ +duplicate
• https://leetcode.com/problems/find-the-kth-smallest-sum-of-a-matrix-with-sorted-rows/ +duplicate
• https://leetcode.com/problems/k-th-smallest-prime-fraction/ +duplicate
• https://leetcode.com/problems/find-the-k-sum-of-an-array/ +duplicate
• https://leetcode.com/problems/p0NxJO/
• https://leetcode.com/problems/furthest-building-you-can-reach/ +duplicate
• https://leetcode.com/problems/course-schedule-iii/
• https://leetcode.com/problems/minimum-number-of-refueling-stops/ +duplicate
• https://leetcode.com/problems/zero-array-transformation-iii/ +duplicate
• https://leetcode.com/problems/maximum-elegance-of-a-k-length-subsequence/
• https://leetcode.com/problems/earliest-second-to-mark-indices-ii/
• https://leetcode.com/problems/make-the-prefix-sum-non-negative/
• https://leetcode.com/problems/design-a-number-container-system/
• https://leetcode.com/problems/design-a-food-rating-system/
• https://leetcode.com/problems/most-frequent-ids/
• https://leetcode.com/problems/stock-price-fluctuation/
• https://leetcode.com/problems/dinner-plate-stacks/ +duplicate
• https://leetcode.com/problems/sequentially-ordinal-rank-tracker/
• https://leetcode.com/problems/find-median-from-data-stream/
• https://leetcode.com/problems/sliding-window-median/
• https://leetcode.com/problems/finding-mk-average/
• https://leetcode.com/problems/divide-an-array-into-subarrays-with-minimum-cost-ii/
• https://leetcode.com/problems/find-x-sum-of-all-k-long-subarrays-ii/
• https://leetcode.com/problems/5TxKeK/
• https://leetcode.com/problems/design-an-array-statistics-tracker/
• https://leetcode.com/problems/implement-trie-prefix-tree/
• https://leetcode.com/problems/design-add-and-search-words-data-structure/
• https://leetcode.com/problems/longest-common-prefix/
• https://leetcode.com/problems/replace-words/
• https://leetcode.com/problems/map-sum-pairs/
• https://leetcode.com/problems/longest-word-in-dictionary/
• https://leetcode.com/problems/search-suggestions-system/
• https://leetcode.com/problems/remove-sub-folders-from-the-filesystem/
• https://leetcode.com/problems/short-encoding-of-words/
• https://leetcode.com/problems/sum-of-prefix-scores-of-strings/
• https://leetcode.com/problems/k-divisible-elements-subarrays/
• https://leetcode.com/problems/implement-trie-ii-prefix-tree/
• https://leetcode.com/problems/unique-substrings-with-equal-digit-frequency/
• https://leetcode.com/problems/implement-magic-dictionary/
• https://leetcode.com/problems/word-search-ii/
• https://leetcode.com/problems/longest-common-suffix-queries/
• https://leetcode.com/problems/prefix-and-suffix-search/
• https://leetcode.com/problems/count-prefix-and-suffix-pairs-ii/
• https://leetcode.com/problems/palindrome-pairs/
• https://leetcode.com/problems/delete-duplicate-folders-in-system/
• https://leetcode.com/problems/word-squares/
• https://leetcode.com/problems/word-abbreviation/
• https://leetcode.com/problems/design-in-memory-file-system/
• https://leetcode.com/problems/add-bold-tag-in-string/
• https://leetcode.com/problems/bold-words-in-string/
• https://leetcode.com/problems/design-search-autocomplete-system/
• https://leetcode.com/problems/index-pairs-of-a-string/
• https://leetcode.com/problems/design-file-system/
• https://leetcode.com/problems/longest-word-with-all-prefixes/
• https://leetcode.com/problems/word-break/ +duplicate
• https://leetcode.com/problems/word-break-ii/ +duplicate
• https://leetcode.com/problems/re-space-lcci/ +duplicate
• https://leetcode.com/problems/concatenated-words/ +duplicate
• https://leetcode.com/problems/minimum-cost-to-convert-string-ii/ +duplicate
• https://leetcode.com/problems/maximum-xor-of-two-numbers-in-an-array/ +duplicate
• https://leetcode.com/problems/maximum-strong-pair-xor-ii/ +duplicate
• https://leetcode.com/problems/maximum-xor-with-an-element-from-array/
• https://leetcode.com/problems/count-pairs-with-xor-in-a-range/ +duplicate
• https://leetcode.com/problems/maximum-genetic-difference-query/
• https://leetcode.com/problems/maximum-xor-of-two-non-overlapping-subtrees/
• https://leetcode.com/problems/satisfiability-of-equality-equations/
• https://leetcode.com/problems/accounts-merge/ +duplicate
• https://leetcode.com/problems/sentence-similarity-ii/
• https://leetcode.com/problems/the-earliest-moment-when-everyone-become-friends/
• https://leetcode.com/problems/synonymous-sentences/
• https://leetcode.com/problems/smallest-string-with-swaps/
• https://leetcode.com/problems/lexicographically-smallest-equivalent-string/
• https://leetcode.com/problems/minimize-hamming-distance-after-swap-operations/
• https://leetcode.com/problems/couples-holding-hands/
• https://leetcode.com/problems/redundant-connection/ +duplicate
• https://leetcode.com/problems/redundant-connection-ii/ +duplicate
• https://leetcode.com/problems/most-stones-removed-with-same-row-or-column/
• https://leetcode.com/problems/similar-string-groups/
• https://leetcode.com/problems/last-day-where-you-can-still-cross/
• https://leetcode.com/problems/process-restricted-friend-requests/
• https://leetcode.com/problems/remove-max-number-of-edges-to-keep-graph-fully-traversable/ +duplicate
• https://leetcode.com/problems/regions-cut-by-slashes/
• https://leetcode.com/problems/find-the-safest-path-in-a-grid/ +duplicate
• https://leetcode.com/problems/maximum-number-of-points-from-grid-queries/ +duplicate
• https://leetcode.com/problems/count-valid-paths-in-a-tree/ +duplicate
• https://leetcode.com/problems/number-of-good-paths/
• https://leetcode.com/problems/groups-of-strings/
• https://leetcode.com/problems/rank-transform-of-a-matrix/
• https://leetcode.com/problems/bricks-falling-when-hit/
• https://leetcode.com/problems/number-of-ways-to-reorder-array-to-get-same-bst/ +duplicate
• https://leetcode.com/problems/check-if-the-rectangle-corner-is-reachable/
• https://leetcode.com/problems/kskhHQ/
• https://leetcode.com/problems/minimize-maximum-value-in-a-grid/
• https://leetcode.com/problems/sort-array-by-moving-items-to-empty-space/
• https://leetcode.com/problems/greatest-common-divisor-traversal/
• https://leetcode.com/problems/graph-connectivity-with-threshold/
• https://leetcode.com/problems/largest-component-size-by-common-factor/
• https://leetcode.com/problems/gcd-sort-of-an-array/
• https://leetcode.com/problems/count-connected-components-in-lcm-graph/
• https://leetcode.com/problems/find-latest-group-of-size-m/
• https://leetcode.com/problems/avoid-flood-in-the-city/
• https://leetcode.com/problems/maximum-segment-sum-after-removals/
• https://leetcode.com/problems/subarray-with-elements-greater-than-varying-threshold/ +duplicate
• https://leetcode.com/problems/minimum-interval-to-include-each-query/ +duplicate
• https://leetcode.com/problems/shortest-distance-after-road-addition-queries-ii/
• https://leetcode.com/problems/amount-of-new-area-painted-each-day/
• https://leetcode.com/problems/evaluate-division/
• https://leetcode.com/problems/check-for-contradictions-in-equations/ https://leetcode.com/problems/range-sum-query-mutable/solution/dai-ni-fa-ming-shu-zhuang-shu-zu-fu-shu-lyfll/
• https://leetcode.com/problems/range-sum-query-mutable/
• https://leetcode.com/problems/distribute-elements-into-two-arrays-ii/
• https://leetcode.com/problems/peaks-in-array/
• https://leetcode.com/problems/create-sorted-array-through-instructions/
• https://leetcode.com/problems/best-team-with-no-conflicts/ +duplicate
• https://leetcode.com/problems/queries-on-a-permutation-with-key/
• https://leetcode.com/problems/count-number-of-rectangles-containing-each-point/
• https://leetcode.com/problems/count-good-triplets-in-an-array/
• https://leetcode.com/problems/count-number-of-teams/ +duplicate
• https://leetcode.com/problems/make-array-empty/
• https://leetcode.com/problems/sliding-subarray-beauty/ +duplicate
• https://leetcode.com/problems/minimum-possible-integer-after-at-most-k-adjacent-swaps-on-digits/
• https://leetcode.com/problems/maximum-balanced-subsequence-sum/ +duplicate
• https://leetcode.com/problems/maximum-sum-queries/
• https://leetcode.com/problems/maximum-area-rectangle-with-point-constraints-ii/
• https://leetcode.com/problems/alternating-groups-iii/
• https://leetcode.com/problems/design-most-recently-used-queue/
• https://leetcode.com/problems/count-the-number-of-k-big-indices/
• https://leetcode.com/problems/beautiful-pairs/
• https://leetcode.com/problems/maximum-profitable-triplets-with-increasing-prices-ii/
• https://leetcode.com/problems/range-sum-query-2d-mutable/
• https://leetcode.com/problems/shu-zu-zhong-de-ni-xu-dui-lcof/
• https://leetcode.com/problems/count-of-smaller-numbers-after-self/
• https://leetcode.com/problems/reverse-pairs/
• https://leetcode.com/problems/count-of-range-sum/
• https://leetcode.com/problems/number-of-pairs-satisfying-inequality/
• https://leetcode.com/problems/minimum-adjacent-swaps-to-reach-the-kth-smallest-number/
• https://leetcode.com/problems/minimum-number-of-moves-to-make-palindrome/
• https://leetcode.com/problems/count-pairs-in-two-arrays/
• https://leetcode.com/problems/online-majority-element-in-subarray/
• https://leetcode.com/problems/longest-increasing-subsequence-ii/ +duplicate
• https://leetcode.com/problems/find-building-where-alice-and-bob-can-meet/ +duplicate
• https://leetcode.com/problems/booking-concert-tickets-in-groups/
• https://leetcode.com/problems/block-placement-queries/
• https://leetcode.com/problems/longest-substring-of-one-repeating-character/
• https://leetcode.com/problems/maximum-sum-of-subsequence-with-non-adjacent-elements/
• https://leetcode.com/problems/ryfUiz/ +duplicate
• https://leetcode.com/problems/minimum-time-to-complete-all-tasks/ +duplicate
• https://leetcode.com/problems/handling-sum-queries-after-update/
• https://leetcode.com/problems/fancy-sequence/
• https://leetcode.com/problems/subarrays-distinct-element-sum-of-squares-ii/ +duplicate
• https://leetcode.com/problems/coin-bonus/
• https://leetcode.com/problems/IQvJ9i/
• https://leetcode.com/problems/falling-squares/
• https://leetcode.com/problems/range-module/
• https://leetcode.com/problems/my-calendar-i/
• https://leetcode.com/problems/my-calendar-ii/
• https://leetcode.com/problems/my-calendar-iii/ +duplicate
• https://leetcode.com/problems/rectangle-area-ii/ +duplicate
• https://leetcode.com/problems/count-integers-in-intervals/
• https://leetcode.com/problems/maximum-number-of-jumps-to-reach-the-last-index/ +duplicate
• https://leetcode.com/problems/query-kth-smallest-trimmed-number/
• https://leetcode.com/problems/most-beautiful-item-for-each-query/
• https://leetcode.com/problems/closest-room/
• https://leetcode.com/problems/maximum-number-of-points-from-grid-queries/ +duplicate
• https://leetcode.com/problems/minimum-interval-to-include-each-query/ +duplicate
• https://leetcode.com/problems/checking-existence-of-edge-length-limited-paths/ +duplicate
• https://leetcode.com/problems/find-building-where-alice-and-bob-can-meet/ +duplicate
• https://leetcode.com/problems/count-zero-request-servers/
• https://leetcode.com/problems/maximum-genetic-difference-query/ +duplicate
• https://leetcode.com/problems/maximum-sum-queries/ +duplicate
• https://leetcode.com/problems/maximum-area-rectangle-with-point-constraints-ii/ +duplicate

Math

• https://leetcode.com/problems/maximum-prime-difference/
• https://leetcode.com/problems/prime-in-diagonal/
• https://leetcode.com/problems/prime-number-of-set-bits-in-binary-representation/
• https://leetcode.com/problems/most-frequent-prime/
• https://leetcode.com/problems/prime-palindrome/
• https://leetcode.com/problems/count-primes/
• https://leetcode.com/problems/prime-pairs-with-target-sum/
• https://leetcode.com/problems/find-the-count-of-numbers-which-are-not-special/
• https://leetcode.com/problems/closest-prime-numbers-in-range/
• https://leetcode.com/problems/prime-subtraction-operation/
• https://leetcode.com/problems/distinct-prime-factors-of-product-of-array/
• https://leetcode.com/problems/smallest-value-after-replacing-with-sum-of-prime-factors/
• https://leetcode.com/problems/minimum-division-operations-to-make-array-non-decreasing/
• https://leetcode.com/problems/split-the-array-to-make-coprime-products/
• https://leetcode.com/problems/greatest-common-divisor-traversal/ +duplicate
• https://leetcode.com/problems/maximum-element-sum-of-a-complete-subset-of-indices/
• https://leetcode.com/problems/apply-operations-to-maximize-score/ +duplicate
• https://leetcode.com/problems/gcd-sort-of-an-array/ +duplicate
• https://leetcode.com/problems/count-ways-to-make-array-with-product/
• https://leetcode.com/problems/count-the-number-of-ideal-arrays/
• https://leetcode.com/problems/factorial-trailing-zeroes/
• https://leetcode.com/problems/preimage-size-of-factorial-zeroes-function/ +duplicate
• https://leetcode.com/problems/number-of-common-factors/
• https://leetcode.com/problems/three-divisors/
• https://leetcode.com/problems/the-kth-factor-of-n/
• https://leetcode.com/problems/perfect-number/
• https://leetcode.com/problems/four-divisors/
• https://leetcode.com/problems/closest-divisors/
• https://leetcode.com/problems/consecutive-numbers-sum/
• https://leetcode.com/problems/find-the-number-of-good-pairs-ii/
• https://leetcode.com/problems/largest-component-size-by-common-factor/ +duplicate
• https://leetcode.com/problems/graph-connectivity-with-threshold/ +duplicate
• https://leetcode.com/problems/number-of-single-divisor-triplets/
• https://leetcode.com/problems/minimum-factorization/
• https://leetcode.com/problems/smallest-number-with-given-digit-product/
• https://leetcode.com/problems/find-greatest-common-divisor-of-array/
• https://leetcode.com/problems/insert-greatest-common-divisors-in-linked-list/
• https://leetcode.com/problems/x-of-a-kind-in-a-deck-of-cards/
• https://leetcode.com/problems/greatest-common-divisor-of-strings/
• https://leetcode.com/problems/minimum-deletions-to-make-array-divisible/
• https://leetcode.com/problems/water-and-jug-problem/
• https://leetcode.com/problems/mirror-reflection/
• https://leetcode.com/problems/minimum-number-of-operations-to-make-all-array-elements-equal-to-1/
• https://leetcode.com/problems/check-if-it-is-a-good-array/
• https://leetcode.com/problems/max-points-on-a-line/
• https://leetcode.com/problems/make-k-subarray-sums-equal/
• https://leetcode.com/problems/number-of-subarrays-with-gcd-equal-to-k/
• https://leetcode.com/problems/check-if-point-is-reachable/
• https://leetcode.com/problems/count-array-pairs-divisible-by-k/
• https://leetcode.com/problems/sorted-gcd-pair-queries/
• https://leetcode.com/problems/number-of-different-subsequences-gcds/
• https://leetcode.com/problems/qie-fen-shu-zu/ +duplicate
• https://leetcode.com/problems/minimum-split-into-subarrays-with-gcd-greater-than-one/ +duplicate
• https://leetcode.com/problems/minimum-subarrays-in-a-valid-split/ +duplicate
• https://leetcode.com/problems/maximum-gcd-sum-of-a-subarray/
• https://leetcode.com/problems/smallest-even-multiple/
• https://leetcode.com/problems/find-the-maximum-factor-score-of-array/ +duplicate
• https://leetcode.com/problems/replace-non-coprime-numbers-in-array/ +duplicate
• https://leetcode.com/problems/number-of-subarrays-with-lcm-equal-to-k/
• https://leetcode.com/problems/number-of-beautiful-pairs/ +duplicate
• https://leetcode.com/problems/simplified-fractions/
• https://leetcode.com/problems/tree-of-coprimes/
• https://leetcode.com/problems/maximum-subarray-with-equal-products/ +duplicate
• https://leetcode.com/problems/destroy-sequential-targets/
• https://leetcode.com/problems/smallest-missing-non-negative-integer-after-operations/
• https://leetcode.com/problems/make-sum-divisible-by-p/ +duplicate
• https://leetcode.com/problems/power-of-three/
• https://leetcode.com/problems/sum-of-square-numbers/ +duplicate
• https://leetcode.com/problems/perfect-squares/ +duplicate
• https://leetcode.com/problems/smallest-integer-divisible-by-k/
• https://leetcode.com/problems/number-of-ways-to-buy-pens-and-pencils/
• https://leetcode.com/problems/find-triangular-sum-of-an-array/
• https://leetcode.com/problems/number-of-laser-beams-in-a-bank/
• https://leetcode.com/problems/right-triangles/ +duplicate
• https://leetcode.com/problems/number-of-ways-to-split-a-string/
• https://leetcode.com/problems/ways-to-split-array-into-good-subarrays/
• https://leetcode.com/problems/count-collisions-of-monkeys-on-a-polygon/
• https://leetcode.com/problems/count-good-numbers/
• https://leetcode.com/problems/number-of-ways-to-divide-a-long-corridor/
• https://leetcode.com/problems/count-the-number-of-good-partitions/
• https://leetcode.com/problems/naming-a-company/
• https://leetcode.com/problems/count-valid-paths-in-a-tree/ +duplicate
• https://leetcode.com/problems/number-of-distinct-binary-strings-after-applying-operations/
• https://leetcode.com/problems/unique-paths/ +duplicate
• https://leetcode.com/problems/count-numbers-with-unique-digits/ +duplicate
• https://leetcode.com/problems/prime-arrangements/
• https://leetcode.com/problems/find-the-n-th-value-after-k-seconds/
• https://leetcode.com/problems/count-all-valid-pickup-and-delivery-options/
• https://leetcode.com/problems/number-of-ways-to-reach-a-position-after-exactly-k-steps/ +duplicate
• https://leetcode.com/problems/count-anagrams/
• https://leetcode.com/problems/find-number-of-ways-to-reach-the-k-th-stair/ +duplicate
• https://leetcode.com/problems/kth-smallest-instructions/
• https://leetcode.com/problems/count-k-subsequences-of-a-string-with-maximum-beauty/
• https://leetcode.com/problems/count-the-number-of-arrays-with-k-matching-adjacent-elements/
• https://leetcode.com/problems/number-of-ways-to-reorder-array-to-get-same-bst/ +duplicate
• https://leetcode.com/problems/number-of-ways-to-rearrange-sticks-with-k-sticks-visible/ +duplicate
• https://leetcode.com/problems/probability-of-a-two-boxes-having-the-same-number-of-distinct-balls/ +duplicate
• https://leetcode.com/problems/find-the-count-of-good-integers/
• https://leetcode.com/problems/find-the-number-of-possible-ways-for-an-event/
• https://leetcode.com/problems/count-ways-to-build-rooms-in-an-ant-colony/ +duplicate
• https://leetcode.com/problems/count-number-of-balanced-permutations/ +duplicate
• https://leetcode.com/problems/minimum-number-of-operations-to-make-string-sorted/
• https://leetcode.com/problems/count-the-number-of-infection-sequences/
• https://leetcode.com/problems/subsequences-with-a-unique-middle-mode-i/
• https://leetcode.com/problems/count-all-possible-routes/ +duplicate
• https://leetcode.com/problems/find-the-count-of-monotonic-pairs-ii/ +duplicate
• https://leetcode.com/problems/Uh984O/
• https://leetcode.com/problems/count-the-number-of-good-subsequences/
• https://leetcode.com/problems/find-the-derangement-of-an-array/
• https://leetcode.com/problems/count-ways-to-distribute-candies/ +duplicate
• https://leetcode.com/problems/count-ways-to-make-array-with-product/ +duplicate
• https://leetcode.com/problems/count-sorted-vowel-strings/
• https://leetcode.com/problems/number-of-sets-of-k-non-overlapping-line-segments/
• https://leetcode.com/problems/number-of-music-playlists/ +duplicate
• https://leetcode.com/problems/count-ways-to-make-array-with-product/ +duplicate
• https://leetcode.com/problems/count-the-number-of-ideal-arrays/ +duplicate
• https://leetcode.com/problems/sum-multiples/
• https://leetcode.com/problems/nth-magical-number/ +duplicate
• https://leetcode.com/problems/ugly-number-iii/ +duplicate
• https://leetcode.com/problems/distribute-candies-among-children-ii/
• https://leetcode.com/problems/number-of-strings-which-can-be-rearranged-to-contain-substring/ +duplicate
• https://leetcode.com/problems/minimize-the-maximum-of-two-arrays/ +duplicate
• https://leetcode.com/problems/kth-smallest-amount-with-single-denomination-combination/ +duplicate
• https://leetcode.com/problems/find-all-possible-stable-binary-arrays-ii/ +duplicate
• https://leetcode.com/problems/find-the-number-of-subsequences-with-equal-gcd/ +duplicate
• https://leetcode.com/problems/distribute-candies-among-children-iii/
• https://leetcode.com/problems/vowels-of-all-substrings/
• https://leetcode.com/problems/sum-of-all-odd-length-subarrays/
• https://leetcode.com/problems/power-of-heroes/
• https://leetcode.com/problems/sum-of-subsequence-widths/
• https://leetcode.com/problems/maximum-and-minimum-sums-of-at-most-size-k-subsequences/
• https://leetcode.com/problems/manhattan-distances-of-all-arrangements-of-pieces/
• https://leetcode.com/problems/sum-of-imbalance-numbers-of-all-subarrays/
• https://leetcode.com/problems/distribute-coins-in-binary-tree/
• https://leetcode.com/problems/minimum-fuel-cost-to-report-to-the-capital/
• https://leetcode.com/problems/airplane-seat-assignment-probability/
• https://leetcode.com/problems/knight-probability-in-chessboard/ +duplicate
• https://leetcode.com/problems/new-21-game/ +duplicate
• https://leetcode.com/problems/probability-of-a-two-boxes-having-the-same-number-of-distinct-balls/ +duplicate
• https://leetcode.com/problems/soup-servings/ +duplicate
• https://leetcode.com/problems/nge-tou-zi-de-dian-shu-lcof/ +duplicate
• https://leetcode.com/problems/qi-wang-ge-shu-tong-ji/
• https://leetcode.com/problems/toss-strange-coins/ +duplicate
• https://leetcode.com/problems/nim-game/
• https://leetcode.com/problems/divisor-game/ +duplicate
• https://leetcode.com/problems/vowels-game-in-a-string/
• https://leetcode.com/problems/remove-colored-pieces-if-both-neighbors-are-the-same-color/ +duplicate
• https://leetcode.com/problems/stone-game/ +duplicate
• https://leetcode.com/problems/stone-game-iv/ +duplicate
• https://leetcode.com/problems/predict-the-winner/ +duplicate
• https://leetcode.com/problems/stone-game-vii/ +duplicate
• https://leetcode.com/problems/stone-game-vi/
• https://leetcode.com/problems/sum-game/
• https://leetcode.com/problems/stone-game-iii/ +duplicate
• https://leetcode.com/problems/stone-game-ii/ +duplicate
• https://leetcode.com/problems/stone-game-v/ +duplicate
• https://leetcode.com/problems/can-i-win/ +duplicate
• https://leetcode.com/problems/stone-game-ix/
• https://leetcode.com/problems/chalkboard-xor-game/ +duplicate
• https://leetcode.com/problems/stone-game-viii/ +duplicate
• https://leetcode.com/problems/cat-and-mouse/ +duplicate
• https://leetcode.com/problems/cat-and-mouse-ii/ +duplicate
• https://leetcode.com/problems/fsa7oZ/
• https://leetcode.com/problems/flip-game-ii/ +duplicate
• https://leetcode.com/problems/game-of-nim/
• https://leetcode.com/problems/subtree-removal-game-with-fibonacci-tree/
• https://leetcode.com/problems/the-wording-game/
• https://leetcode.com/problems/check-if-it-is-a-straight-line/
• https://leetcode.com/problems/minimum-lines-to-represent-a-line-chart/
• https://leetcode.com/problems/maximum-number-of-visible-points/ +duplicate
• https://leetcode.com/problems/intersection-lcci/
• https://leetcode.com/problems/bisect-squares-lcci/
• https://leetcode.com/problems/best-line-lcci/
• https://leetcode.com/problems/zui-xiao-ju-xing-mian-ji/
• https://leetcode.com/problems/minimum-number-of-lines-to-cover-points/ +duplicate
• https://leetcode.com/problems/circle-and-rectangle-overlapping/
• https://leetcode.com/problems/maximum-number-of-darts-inside-of-a-circular-dartboard/
• https://leetcode.com/problems/vFjcfV/
• https://leetcode.com/problems/check-if-the-rectangle-corner-is-reachable/ +duplicate
• https://leetcode.com/problems/erect-the-fence-ii/
• https://leetcode.com/problems/rectangle-overlap/
• https://leetcode.com/problems/rectangle-area/
• https://leetcode.com/problems/valid-square/
• https://leetcode.com/problems/minimum-area-rectangle/
• https://leetcode.com/problems/minimum-area-rectangle-ii/
• https://leetcode.com/problems/convex-polygon/
• https://leetcode.com/problems/erect-the-fence/
• https://leetcode.com/problems/you-le-yuan-de-mi-gong/
• https://leetcode.com/problems/random-pick-index/
• https://leetcode.com/problems/linked-list-random-node/
• https://leetcode.com/problems/shuffle-an-array/
• https://leetcode.com/problems/implement-rand10-using-rand7/
• https://leetcode.com/problems/random-pick-with-weight/
• https://leetcode.com/problems/random-pick-with-blacklist/
• https://leetcode.com/problems/generate-random-point-in-a-circle/
• https://leetcode.com/problems/random-point-in-non-overlapping-rectangles/
• https://leetcode.com/problems/random-flip-matrix/
• https://leetcode.com/problems/insert-delete-getrandom-o1/
• https://leetcode.com/problems/insert-delete-getrandom-o1-duplicates-allowed/
• https://leetcode.com/problems/best-position-for-a-service-centre/
• https://leetcode.com/problems/array-with-elements-not-equal-to-average-of-neighbors/
• https://leetcode.com/problems/palindrome-number/
• https://leetcode.com/problems/strictly-palindromic-number/
• https://leetcode.com/problems/find-palindrome-with-fixed-length/
• https://leetcode.com/problems/prime-palindrome/ +duplicate
• https://leetcode.com/problems/minimum-cost-to-make-array-equalindromic/
• https://leetcode.com/problems/super-palindromes/
• https://leetcode.com/problems/sum-of-k-mirror-numbers/
• https://leetcode.com/problems/find-the-largest-palindrome-divisible-by-k/ +duplicate
• https://leetcode.com/problems/find-the-count-of-good-integers/ +duplicate
• https://leetcode.com/problems/find-the-closest-palindrome/
• https://leetcode.com/problems/largest-palindrome-product/
• https://leetcode.com/problems/integer-break/
• https://leetcode.com/problems/maximize-number-of-nice-divisors/
• https://leetcode.com/problems/maximum-of-absolute-value-expression/
• https://leetcode.com/problems/minimize-manhattan-distances/
• https://leetcode.com/problems/reverse-subarray-to-maximize-array-value/
• https://leetcode.com/problems/minimum-time-for-k-virus-variants-to-spread/
• https://leetcode.com/problems/beautiful-pairs/ +duplicate
• https://leetcode.com/problems/determine-the-minimum-sum-of-a-k-avoiding-array/
• https://leetcode.com/problems/count-total-number-of-colored-cells/
• https://leetcode.com/problems/find-the-minimum-possible-sum-of-a-beautiful-array/
• https://leetcode.com/problems/find-the-minimum-number-of-fibonacci-numbers-whose-sum-is-k/
• https://leetcode.com/problems/bulb-switcher/
• https://leetcode.com/problems/check-if-number-is-a-sum-of-powers-of-three/
• https://leetcode.com/problems/apply-operations-to-make-sum-of-array-greater-than-or-equal-to-k/
• https://leetcode.com/problems/sum-of-numbers-with-units-digit-k/
• https://leetcode.com/problems/minimum-operations-to-make-a-special-number/
• https://leetcode.com/problems/minimum-operations-to-make-array-equal-ii/
• https://leetcode.com/problems/append-k-integers-with-minimal-sum/
• https://leetcode.com/problems/minimum-addition-to-make-integer-beautiful/
• https://leetcode.com/problems/convert-to-base-2/
• https://leetcode.com/problems/minimum-garden-perimeter-to-collect-enough-apples/
• https://leetcode.com/problems/adding-two-negabinary-numbers/
• https://leetcode.com/problems/find-the-winner-of-the-circular-game/
• https://leetcode.com/problems/fraction-to-recurring-decimal/
• https://leetcode.com/problems/minimize-length-of-array-using-operations/
• https://leetcode.com/problems/smallest-good-base/
• https://leetcode.com/problems/equal-rational-numbers/
• https://leetcode.com/problems/sum-of-floored-pairs/ +duplicate
• https://leetcode.com/problems/building-boxes/
• https://leetcode.com/problems/sum-of-number-and-its-reverse/
• https://leetcode.com/problems/minimum-number-of-operations-to-reinitialize-a-permutation/
• https://leetcode.com/problems/poor-pigs/
• https://leetcode.com/problems/permutation-sequence/
• https://leetcode.com/problems/abbreviating-the-product-of-a-range/
• https://leetcode.com/problems/deep-dark-fraction/
• https://leetcode.com/problems/SNJvJP/
• https://leetcode.com/problems/remove-9/
• https://leetcode.com/problems/most-expensive-item-that-can-not-be-bought/
• https://leetcode.com/problems/color-the-triangle-red/

Greedy

• https://leetcode.com/problems/apple-redistribution-into-boxes/
• https://leetcode.com/problems/maximum-bags-with-full-capacity-of-rocks/
• https://leetcode.com/problems/maximum-ice-cream-bars/
• https://leetcode.com/problems/maximize-sum-of-array-after-k-negations/
• https://leetcode.com/problems/least-number-of-unique-integers-after-k-removals/
• https://leetcode.com/problems/minimum-subsequence-in-non-increasing-order/
• https://leetcode.com/problems/divide-an-array-into-subarrays-with-minimum-cost-i/
• https://leetcode.com/problems/reduce-array-size-to-the-half/
• https://leetcode.com/problems/maximum-units-on-a-truck/
• https://leetcode.com/problems/maximize-happiness-of-selected-children/
• https://leetcode.com/problems/maximum-number-of-integers-to-choose-from-a-range-i/
• https://leetcode.com/problems/destroying-asteroids/
• https://leetcode.com/problems/rearrange-array-to-maximize-prefix-score/
• https://leetcode.com/problems/largest-perimeter-triangle/
• https://leetcode.com/problems/maximum-number-of-coins-you-can-get/
• https://leetcode.com/problems/maximize-the-total-height-of-unique-towers/
• https://leetcode.com/problems/minimum-increment-to-make-array-unique/
• https://leetcode.com/problems/maximum-element-after-decreasing-and-rearranging/
• https://leetcode.com/problems/minimum-deletions-to-make-character-frequencies-unique/
• https://leetcode.com/problems/find-polygon-with-the-largest-perimeter/
• https://leetcode.com/problems/maximum-split-of-positive-even-integers/
• https://leetcode.com/problems/minimum-score-by-changing-two-elements/
• https://leetcode.com/problems/minimum-difference-between-largest-and-smallest-value-in-three-moves/
• https://leetcode.com/problems/maximum-number-of-distinct-elements-after-operations/
• https://leetcode.com/problems/uOAnQW/
• https://leetcode.com/problems/greatest-sum-divisible-by-three/ +duplicate
• https://leetcode.com/problems/bag-of-tokens/ +duplicate
• https://leetcode.com/problems/equal-sum-arrays-with-minimum-number-of-operations/
• https://leetcode.com/problems/minimum-sum-of-squared-difference/
• https://leetcode.com/problems/reschedule-meetings-for-maximum-free-time-ii/
• https://leetcode.com/problems/maximum-running-time-of-n-computers/ +duplicate
• https://leetcode.com/problems/how-many-apples-can-you-put-into-the-basket/
• https://leetcode.com/problems/minimum-health-to-beat-game/
• https://leetcode.com/problems/subsequence-of-size-k-with-the-largest-even-sum/
• https://leetcode.com/problems/maximum-price-to-fill-a-bag/
• https://leetcode.com/problems/maximum-number-of-potholes-that-can-be-fixed/
• https://leetcode.com/problems/maximum-number-of-integers-to-choose-from-a-range-ii/
• https://leetcode.com/problems/maximum-distance-in-arrays/ +duplicate
• https://leetcode.com/problems/smallest-range-ii/
• https://leetcode.com/problems/minimum-operations-to-form-subsequence-with-target-sum/ +duplicate
• https://leetcode.com/problems/minimum-array-sum/ +duplicate
• https://leetcode.com/problems/minimum-cost-of-buying-candies-with-discount/
• https://leetcode.com/problems/array-partition/
• https://leetcode.com/problems/minimize-maximum-pair-sum-in-array/
• https://leetcode.com/problems/boats-to-save-people/
• https://leetcode.com/problems/maximize-greatness-of-an-array/
• https://leetcode.com/problems/find-the-maximum-number-of-marked-indices/ +duplicate
• https://leetcode.com/problems/minimum-number-of-moves-to-seat-everyone/
• https://leetcode.com/problems/assign-cookies/
• https://leetcode.com/problems/maximum-matching-of-players-with-trainers/
• https://leetcode.com/problems/check-if-a-string-can-break-another-string/
• https://leetcode.com/problems/advantage-shuffle/
• https://leetcode.com/problems/most-profit-assigning-work/
• https://leetcode.com/problems/minimum-number-of-operations-to-make-arrays-similar/
• https://leetcode.com/problems/minimum-space-wasted-from-packaging/
• https://leetcode.com/problems/rearranging-fruits/
• https://leetcode.com/problems/find-minimum-time-to-finish-all-jobs-ii/
• https://leetcode.com/problems/minimum-operations-to-make-columns-strictly-increasing/
• https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-i/
• https://leetcode.com/problems/minimum-operations-to-make-the-array-increasing/
• https://leetcode.com/problems/minimum-moves-to-convert-string/
• https://leetcode.com/problems/can-place-flowers/
• https://leetcode.com/problems/minimum-rectangles-to-cover-points/
• https://leetcode.com/problems/remove-adjacent-almost-equal-characters/
• https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-ii/
• https://leetcode.com/problems/largest-element-in-an-array-after-merge-operations/
• https://leetcode.com/problems/minimum-suffix-flips/
• https://leetcode.com/problems/decrease-elements-to-make-array-zigzag/
• https://leetcode.com/problems/maximum-number-of-operations-to-move-ones-to-the-end/
• https://leetcode.com/problems/minimum-number-of-food-buckets-to-feed-the-hamsters/
• https://leetcode.com/problems/minimum-operations-to-reduce-an-integer-to-0/ +duplicate
• https://leetcode.com/problems/minimum-cost-to-make-all-characters-equal/ +duplicate
• https://leetcode.com/problems/minimum-division-operations-to-make-array-non-decreasing/ +duplicate
• https://leetcode.com/problems/minimum-swaps-to-arrange-a-binary-grid/
• https://leetcode.com/problems/make-costs-of-paths-equal-in-a-binary-tree/
• https://leetcode.com/problems/score-after-flipping-matrix/
• https://leetcode.com/problems/delete-columns-to-make-sorted-ii/
• https://leetcode.com/problems/minimum-replacements-to-sort-the-array/
• https://leetcode.com/problems/minimum-number-of-moves-to-make-palindrome/ +duplicate
• https://leetcode.com/problems/maximize-the-minimum-powered-city/ +duplicate
• https://leetcode.com/problems/merge-operations-to-turn-array-into-a-palindrome/ +duplicate
• https://leetcode.com/problems/split-a-string-in-balanced-strings/
• https://leetcode.com/problems/optimal-partition-of-string/
• https://leetcode.com/problems/partition-array-such-that-maximum-difference-is-k/
• https://leetcode.com/problems/maximum-number-of-groups-entering-a-competition/
• https://leetcode.com/problems/partition-string-into-substrings-with-values-at-most-k/
• https://leetcode.com/problems/maximum-number-of-non-overlapping-subarrays-with-sum-equals-target/ +duplicate
• https://leetcode.com/problems/minimum-split-into-subarrays-with-gcd-greater-than-one/ +duplicate
• https://leetcode.com/problems/minimizing-array-after-replacing-pairs-with-their-product/
• https://leetcode.com/problems/removing-minimum-number-of-magic-beans/
• https://leetcode.com/problems/minimum-deletions-to-make-string-k-special/
• https://leetcode.com/problems/largest-submatrix-with-rearrangements/
• https://leetcode.com/problems/minimum-operations-to-make-the-integer-zero/ +duplicate
• https://leetcode.com/problems/minimum-number-of-groups-to-create-a-valid-assignment/
• https://leetcode.com/problems/maximum-total-beauty-of-the-gardens/ https://leetcode.com/problems/minimum-processing-time/solution/tan-xin-pythonjavacgo-by-endlesscheng-8fzf/
• https://leetcode.com/problems/minimum-processing-time/
• https://leetcode.com/problems/minimum-initial-energy-to-finish-tasks/
• https://leetcode.com/problems/minimum-amount-of-damage-dealt-to-bob/
• https://leetcode.com/problems/earliest-possible-day-of-full-bloom/
• https://leetcode.com/problems/largest-number/
• https://leetcode.com/problems/maximum-possible-number-by-binary-concatenation/ https://leetcode.com/problems/reorganize-string/solution/tan-xin-gou-zao-pai-xu-bu-pai-xu-liang-c-h9jg/
• https://leetcode.com/problems/minimum-amount-of-time-to-fill-cups/
• https://leetcode.com/problems/maximum-score-from-removing-stones/
• https://leetcode.com/problems/distant-barcodes/ +duplicate
• https://leetcode.com/problems/minimum-array-length-after-pair-removals/ +duplicate
• https://leetcode.com/problems/maximum-number-of-weeks-for-which-you-can-work/ +duplicate
• https://leetcode.com/problems/reorganize-string/ +duplicate
• https://leetcode.com/problems/minimum-cost-to-equalize-array/
• https://leetcode.com/problems/task-scheduler/ +duplicate
• https://leetcode.com/problems/rearrange-string-k-distance-apart/ +duplicate
• https://leetcode.com/problems/string-without-aaa-or-bbb/ +duplicate
• https://leetcode.com/problems/longest-happy-string/ +duplicate https://leetcode.com/problems/p0NxJO/solution/fan-hui-tan-xin-fu-ti-dan-pythonjavacgoj-hxup/
• https://leetcode.com/problems/p0NxJO/ +duplicate
• https://leetcode.com/problems/furthest-building-you-can-reach/ +duplicate
• https://leetcode.com/problems/course-schedule-iii/ +duplicate
• https://leetcode.com/problems/minimum-number-of-refueling-stops/ +duplicate
• https://leetcode.com/problems/zero-array-transformation-iii/ +duplicate
• https://leetcode.com/problems/maximum-elegance-of-a-k-length-subsequence/ +duplicate
• https://leetcode.com/problems/earliest-second-to-mark-indices-ii/ +duplicate
• https://leetcode.com/problems/minimum-total-distance-traveled/ +duplicate
• https://leetcode.com/problems/make-the-prefix-sum-non-negative/ +duplicate
• https://leetcode.com/problems/maximum-length-of-pair-chain/
• https://leetcode.com/problems/non-overlapping-intervals/
• https://leetcode.com/problems/maximum-number-of-non-overlapping-substrings/
• https://leetcode.com/problems/divide-intervals-into-minimum-number-of-groups/ +duplicate
• https://leetcode.com/problems/meeting-rooms-ii/ +duplicate
• https://leetcode.com/problems/minimum-number-of-arrows-to-burst-balloons/
• https://leetcode.com/problems/set-intersection-size-at-least-two/
• https://leetcode.com/problems/jump-game-ii/
• https://leetcode.com/problems/jump-game-ii/ +duplicate
• https://leetcode.com/problems/video-stitching/
• https://leetcode.com/problems/minimum-number-of-taps-to-open-to-water-a-garden/
• https://leetcode.com/problems/merge-intervals/ +duplicate
• https://leetcode.com/problems/insert-interval/ +duplicate
• https://leetcode.com/problems/jump-game/
• https://leetcode.com/problems/partition-labels/
• https://leetcode.com/problems/count-days-without-meetings/
• https://leetcode.com/problems/count-ways-to-group-overlapping-ranges/
• https://leetcode.com/problems/check-if-grid-can-be-cut-into-sections/
• https://leetcode.com/problems/count-the-number-of-good-partitions/ +duplicate
• https://leetcode.com/problems/split-the-array-to-make-coprime-products/ +duplicate
• https://leetcode.com/problems/add-bold-tag-in-string/ +duplicate
• https://leetcode.com/problems/bold-words-in-string/ +duplicate
• https://leetcode.com/problems/minimize-connected-groups-by-inserting-interval/ +duplicate
• https://leetcode.com/problems/employee-free-time/ +duplicate
• https://leetcode.com/problems/find-maximal-uncovered-ranges/
• https://leetcode.com/problems/remove-covered-intervals/
• https://leetcode.com/problems/two-best-non-overlapping-events/ +duplicate
• https://leetcode.com/problems/maximum-number-of-eaten-apples/ +duplicate
• https://leetcode.com/problems/maximum-number-of-events-that-can-be-attended/ +duplicate
• https://leetcode.com/problems/minimum-time-to-complete-all-tasks/ +duplicate
• https://leetcode.com/problems/maximum-69-number/
• https://leetcode.com/problems/lexicographically-smallest-string-after-a-swap/
• https://leetcode.com/problems/lexicographically-smallest-palindrome/
• https://leetcode.com/problems/maximum-value-after-insertion/
• https://leetcode.com/problems/lexicographically-smallest-string-after-substring-operation/
• https://leetcode.com/problems/largest-number-after-mutating-substring/
• https://leetcode.com/problems/smallest-string-with-a-given-numeric-value/
• https://leetcode.com/problems/break-a-palindrome/
• https://leetcode.com/problems/remove-digit-from-number-to-maximize-result/
• https://leetcode.com/problems/maximum-difference-by-remapping-a-digit/
• https://leetcode.com/problems/maximum-swap/
• https://leetcode.com/problems/lexicographically-smallest-string-after-operations-with-constraint/
• https://leetcode.com/problems/previous-permutation-with-one-swap/
• https://leetcode.com/problems/construct-smallest-number-from-di-string/
• https://leetcode.com/problems/construct-string-with-repeat-limit/
• https://leetcode.com/problems/monotone-increasing-digits/
• https://leetcode.com/problems/find-the-lexicographically-largest-string-from-the-box-i/
• https://leetcode.com/problems/lexicographically-minimum-string-after-removing-stars/ +duplicate
• https://leetcode.com/problems/largest-multiple-of-three/ +duplicate
• https://leetcode.com/problems/largest-merge-of-two-strings/
• https://leetcode.com/problems/smallest-string-with-swaps/ +duplicate
• https://leetcode.com/problems/using-a-robot-to-print-the-lexicographically-smallest-string/ +duplicate
• https://leetcode.com/problems/lexicographically-smallest-string-after-applying-operations/
• https://leetcode.com/problems/make-lexicographically-smallest-array-by-swapping-elements/ +duplicate
• https://leetcode.com/problems/find-the-closest-palindrome/ +duplicate
• https://leetcode.com/problems/minimum-possible-integer-after-at-most-k-adjacent-swaps-on-digits/ +duplicate
• https://leetcode.com/problems/lexicographically-smallest-beautiful-string/
• https://leetcode.com/problems/find-the-lexicographically-smallest-valid-sequence/ +duplicate
• https://leetcode.com/problems/split-concatenated-strings/
• https://leetcode.com/problems/make-string-anti-palindrome/
• https://leetcode.com/problems/longest-palindrome/
• https://leetcode.com/problems/lexicographically-smallest-palindrome/ +duplicate
• https://leetcode.com/problems/valid-palindrome-ii/
• https://leetcode.com/problems/break-a-palindrome/ +duplicate
• https://leetcode.com/problems/construct-k-palindrome-strings/
• https://leetcode.com/problems/longest-palindrome-by-concatenating-two-letter-words/
• https://leetcode.com/problems/largest-palindromic-number/
• https://leetcode.com/problems/maximum-palindromes-after-operations/
• https://leetcode.com/problems/split-two-strings-to-make-palindrome/ +duplicate
• https://leetcode.com/problems/longest-chunked-palindrome-decomposition/
• https://leetcode.com/problems/minimum-number-of-moves-to-make-palindrome/ +duplicate
• https://leetcode.com/problems/find-the-closest-palindrome/ +duplicate
• https://leetcode.com/problems/palindrome-permutation/
• https://leetcode.com/problems/merge-operations-to-turn-array-into-a-palindrome/ +duplicate
• https://leetcode.com/problems/next-palindrome-using-same-digits/
• https://leetcode.com/problems/make-string-anti-palindrome/ +duplicate
• https://leetcode.com/problems/minimum-sum-of-four-digit-number-after-splitting-digits/
• https://leetcode.com/problems/split-with-minimum-sum/
• https://leetcode.com/problems/minimum-rounds-to-complete-all-tasks/
• https://leetcode.com/problems/minimum-number-of-operations-to-make-array-empty/
• https://leetcode.com/problems/minimum-cost-to-move-chips-to-the-same-position/
• https://leetcode.com/problems/Ju9Xwi/
• https://leetcode.com/problems/apply-operations-to-make-sum-of-array-greater-than-or-equal-to-k/ +duplicate
• https://leetcode.com/problems/integer-replacement/ +duplicate
• https://leetcode.com/problems/maximum-product-of-three-numbers/
• https://leetcode.com/problems/maximum-length-of-subarray-with-positive-product/ +duplicate
• https://leetcode.com/problems/maximum-total-importance-of-roads/
• https://leetcode.com/problems/minimum-number-of-pushes-to-type-word-ii/
• https://leetcode.com/problems/reducing-dishes/
• https://leetcode.com/problems/maximum-spending-after-buying-items/ +duplicate
• https://leetcode.com/problems/maximum-sum-obtained-of-any-permutation/ +duplicate
• https://leetcode.com/problems/minimize-product-sum-of-two-arrays/
• https://leetcode.com/problems/minimum-number-of-keypresses/
• https://leetcode.com/problems/replace-question-marks-in-string-to-minimize-its-value/ +duplicate
• https://leetcode.com/problems/minimum-non-zero-product-of-the-array-elements/
• https://leetcode.com/problems/maximum-xor-product/ +duplicate
• https://leetcode.com/problems/apply-operations-on-array-to-maximize-sum-of-squares/ +duplicate https://leetcode.com/problems/5TxKeK/solution/zhuan-huan-zhong-wei-shu-tan-xin-dui-din-7r9b/
• https://leetcode.com/problems/minimum-moves-to-equal-array-elements-ii/
• https://leetcode.com/problems/minimum-operations-to-make-a-uni-value-grid/
• https://leetcode.com/problems/minimum-cost-to-make-array-equal/
• https://leetcode.com/problems/make-k-subarray-sums-equal/ +duplicate
• https://leetcode.com/problems/minimum-cost-to-make-array-equalindromic/ +duplicate
• https://leetcode.com/problems/allocate-mailboxes/ +duplicate
• https://leetcode.com/problems/apply-operations-to-maximize-frequency-score/ +duplicate
• https://leetcode.com/problems/minimum-adjacent-swaps-for-k-consecutive-ones/ +duplicate
• https://leetcode.com/problems/minimum-moves-to-pick-k-ones/ +duplicate
• https://leetcode.com/problems/5TxKeK/ +duplicate
• https://leetcode.com/problems/best-meeting-point/
• https://leetcode.com/problems/minimum-number-of-coins-to-be-added/
• https://leetcode.com/problems/patching-array/
• https://leetcode.com/problems/maximum-number-of-consecutive-values-you-can-make/
• https://leetcode.com/problems/find-the-minimum-number-of-fibonacci-numbers-whose-sum-is-k/ +duplicate
• https://leetcode.com/problems/minimum-operations-to-make-median-of-array-equal-to-k/
• https://leetcode.com/problems/reach-a-number/
• https://leetcode.com/problems/minimize-rounding-error-to-meet-target/
• https://leetcode.com/problems/construct-the-longest-new-string/ +duplicate
• https://leetcode.com/problems/mice-and-cheese/
• https://leetcode.com/problems/two-city-scheduling/
• https://leetcode.com/problems/minimum-additions-to-make-valid-string/
• https://leetcode.com/problems/maximize-the-topmost-element-after-k-moves/
• https://leetcode.com/problems/minimum-impossible-or/ +duplicate
• https://leetcode.com/problems/maximum-binary-string-after-change/
• https://leetcode.com/problems/minimize-length-of-array-using-operations/ +duplicate
• https://leetcode.com/problems/minimum-number-of-increments-on-subarrays-to-form-a-target-array/ +duplicate
• https://leetcode.com/problems/shortest-impossible-sequence-of-rolls/
• https://leetcode.com/problems/super-washing-machines/
• https://leetcode.com/problems/minimum-total-cost-to-make-arrays-unequal/
• https://leetcode.com/problems/minimize-the-maximum-adjacent-element-difference/
• https://leetcode.com/problems/neither-minimum-nor-maximum/
• https://leetcode.com/problems/largest-odd-number-in-string/
• https://leetcode.com/problems/count-distinct-numbers-on-board/
• https://leetcode.com/problems/count-partitions-with-even-sum-difference/
• https://leetcode.com/problems/strictly-palindromic-number/ +duplicate
• https://leetcode.com/problems/partitioning-into-minimum-number-of-deci-binary-numbers/
• https://leetcode.com/problems/range-addition-ii/
• https://leetcode.com/problems/longest-uncommon-subsequence-i/
• https://leetcode.com/problems/vowels-game-in-a-string/ +duplicate
• https://leetcode.com/problems/longest-subarray-with-maximum-bitwise-and/ +duplicate
• https://leetcode.com/problems/minimum-cost-to-make-arrays-identical/
• https://leetcode.com/problems/find-all-groups-of-farmland/
• https://leetcode.com/problems/minimum-domino-rotations-for-equal-row/
• https://leetcode.com/problems/check-if-it-is-possible-to-split-array/
• https://leetcode.com/problems/count-collisions-on-a-road/ +duplicate
• https://leetcode.com/problems/maximum-points-after-enemy-battles/
• https://leetcode.com/problems/apply-bitwise-operations-to-make-strings-equal/ +duplicate
• https://leetcode.com/problems/last-moment-before-all-ants-fall-out-of-a-plank/
• https://leetcode.com/problems/happy-students/
• https://leetcode.com/problems/remove-palindromic-subsequences/
• https://leetcode.com/problems/maximum-matrix-sum/
• https://leetcode.com/problems/binary-tree-coloring-game/
• https://leetcode.com/problems/maximum-number-of-occurrences-of-a-substring/ +duplicate
• https://leetcode.com/problems/reach-end-of-array-with-max-score/
• https://leetcode.com/problems/the-latest-time-to-catch-a-bus/
• https://leetcode.com/problems/maximum-or/ +duplicate
• https://leetcode.com/problems/movement-of-robots/
• https://leetcode.com/problems/disconnect-path-in-a-binary-matrix-by-at-most-one-flip/ +duplicate
• https://leetcode.com/problems/maximum-number-that-makes-result-of-bitwise-and-zero/ +duplicate
• https://leetcode.com/problems/count-pairs-of-equal-substrings-with-minimum-difference/
• https://leetcode.com/problems/minimum-moves-to-reach-target-score/
• https://leetcode.com/problems/minimum-numbers-of-function-calls-to-make-target-array/ +duplicate
• https://leetcode.com/problems/brick-wall/
• https://leetcode.com/problems/sum-of-matrix-after-queries/
• https://leetcode.com/problems/pacific-atlantic-water-flow/ +duplicate
• https://leetcode.com/problems/broken-calculator/ +duplicate
• https://leetcode.com/problems/encrypt-and-decrypt-strings/
• https://leetcode.com/problems/minimize-the-maximum-edge-weight-of-graph/ +duplicate
• https://leetcode.com/problems/minimum-operations-to-make-array-values-equal-to-k/
• https://leetcode.com/problems/minimum-number-of-changes-to-make-binary-string-beautiful/
• https://leetcode.com/problems/rearrange-k-substrings-to-form-target-string/
• https://leetcode.com/problems/determine-if-two-strings-are-close/
• https://leetcode.com/problems/put-marbles-in-bags/
• https://leetcode.com/problems/check-if-string-is-transformable-with-substring-sort-operations/
• https://leetcode.com/problems/moving-stones-until-consecutive-ii/ +duplicate
• https://leetcode.com/problems/group-shifted-strings/
• https://leetcode.com/problems/group-anagrams/
• https://leetcode.com/problems/maximum-number-of-ones/
• https://leetcode.com/problems/di-string-match/
• https://leetcode.com/problems/array-with-elements-not-equal-to-average-of-neighbors/ +duplicate
• https://leetcode.com/problems/array-with-elements-not-equal-to-average-of-neighbors/ +duplicate
• https://leetcode.com/problems/reconstruct-a-2-row-binary-matrix/
• https://leetcode.com/problems/construct-string-with-repeat-limit/ +duplicate
• https://leetcode.com/problems/pancake-sorting/
• https://leetcode.com/problems/find-valid-matrix-given-row-and-column-sums/
• https://leetcode.com/problems/construct-smallest-number-from-di-string/ +duplicate
• https://leetcode.com/problems/wiggle-sort-ii/
• https://leetcode.com/problems/beautiful-arrangement-ii/
• https://leetcode.com/problems/recover-the-original-array/ +duplicate
• https://leetcode.com/problems/beautiful-array/
• https://leetcode.com/problems/construct-2d-grid-matching-graph-layout/
• https://leetcode.com/problems/find-the-string-with-lcp/
• https://leetcode.com/problems/find-array-given-subset-sums/
• https://leetcode.com/problems/wiggle-sort/
• https://leetcode.com/problems/find-permutation/
• https://leetcode.com/problems/find-unique-binary-string/
• https://leetcode.com/problems/find-the-value-of-the-partition/
• https://leetcode.com/problems/moving-stones-until-consecutive/
• https://leetcode.com/problems/minimum-number-of-swaps-to-make-the-binary-string-alternating/
• https://leetcode.com/problems/merge-triplets-to-form-target-triplet/
• https://leetcode.com/problems/frog-jump-ii/
• https://leetcode.com/problems/gas-station/
• https://leetcode.com/problems/longest-binary-subsequence-less-than-or-equal-to-k/
• https://leetcode.com/problems/maximum-manhattan-distance-after-k-changes/
• https://leetcode.com/problems/maximum-size-of-a-set-after-removals/
• https://leetcode.com/problems/minimum-money-required-before-transactions/
• https://leetcode.com/problems/split-array-into-consecutive-subsequences/
• https://leetcode.com/problems/find-a-good-subset-of-the-matrix/
• https://leetcode.com/problems/maximum-number-of-groups-with-increasing-length/
• https://leetcode.com/problems/transform-to-chessboard/
• https://leetcode.com/problems/strong-password-checker/
• https://leetcode.com/problems/hSRGyL/
• https://leetcode.com/problems/XxZZjK/
• https://leetcode.com/problems/count-houses-in-a-circular-street-ii/

Graph

• https://leetcode.com/problems/convert-binary-number-in-a-linked-list-to-integer/
• https://leetcode.com/problems/find-the-minimum-and-maximum-number-of-nodes-between-critical-points/
• https://leetcode.com/problems/merge-nodes-in-between-zeros/
• https://leetcode.com/problems/split-linked-list-in-parts/
• https://leetcode.com/problems/linked-list-components/
• https://leetcode.com/problems/winner-of-the-linked-list-game/
• https://leetcode.com/problems/linked-list-frequency/ +duplicate
• https://leetcode.com/problems/remove-linked-list-elements/
• https://leetcode.com/problems/delete-nodes-from-linked-list-present-in-array/
• https://leetcode.com/problems/remove-duplicates-from-sorted-list/
• https://leetcode.com/problems/remove-duplicates-from-sorted-list-ii/
• https://leetcode.com/problems/delete-node-in-a-linked-list/
• https://leetcode.com/problems/merge-in-between-linked-lists/
• https://leetcode.com/problems/remove-nodes-from-linked-list/
• https://leetcode.com/problems/remove-duplicates-from-an-unsorted-linked-list/
• https://leetcode.com/problems/insert-greatest-common-divisors-in-linked-list/ +duplicate
• https://leetcode.com/problems/insertion-sort-list/
• https://leetcode.com/problems/4ueAj6/
• https://leetcode.com/problems/insert-into-a-sorted-circular-linked-list/
• https://leetcode.com/problems/sort-linked-list-already-sorted-using-absolute-values/
• https://leetcode.com/problems/reverse-linked-list/
• https://leetcode.com/problems/reverse-linked-list-ii/
• https://leetcode.com/problems/swap-nodes-in-pairs/
• https://leetcode.com/problems/reverse-nodes-in-k-group/
• https://leetcode.com/problems/reverse-nodes-in-even-length-groups/
• https://leetcode.com/problems/remove-nth-node-from-end-of-list/
• https://leetcode.com/problems/rotate-list/
• https://leetcode.com/problems/swapping-nodes-in-a-linked-list/
• https://leetcode.com/problems/delete-n-nodes-after-m-nodes-of-a-linked-list/
• https://leetcode.com/problems/middle-of-the-linked-list/
• https://leetcode.com/problems/delete-the-middle-node-of-a-linked-list/
• https://leetcode.com/problems/palindrome-linked-list/
• https://leetcode.com/problems/maximum-twin-sum-of-a-linked-list/
• https://leetcode.com/problems/reorder-list/
• https://leetcode.com/problems/linked-list-cycle/
• https://leetcode.com/problems/linked-list-cycle-ii/
• https://leetcode.com/problems/circular-array-loop/
• https://leetcode.com/problems/split-a-circular-linked-list/
• https://leetcode.com/problems/odd-even-linked-list/
• https://leetcode.com/problems/partition-list/
• https://leetcode.com/problems/intersection-of-two-linked-lists/
• https://leetcode.com/problems/add-two-numbers/
• https://leetcode.com/problems/add-two-numbers-ii/
• https://leetcode.com/problems/double-a-number-represented-as-a-linked-list/
• https://leetcode.com/problems/merge-two-sorted-lists/
• https://leetcode.com/problems/plus-one-linked-list/
• https://leetcode.com/problems/add-two-polynomials-represented-as-linked-lists/
• https://leetcode.com/problems/merge-k-sorted-lists/ +duplicate
• https://leetcode.com/problems/sort-list/
• https://leetcode.com/problems/next-greater-node-in-linked-list/ +duplicate
• https://leetcode.com/problems/remove-zero-sum-consecutive-nodes-from-linked-list/
• https://leetcode.com/problems/design-linked-list/
• https://leetcode.com/problems/lru-cache/
• https://leetcode.com/problems/lfu-cache/
• https://leetcode.com/problems/all-oone-data-structure/
• https://leetcode.com/problems/design-skiplist/
• https://leetcode.com/problems/copy-list-with-random-pointer/
• https://leetcode.com/problems/linked-list-random-node/ +duplicate
• https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list/
• https://leetcode.com/problems/print-immutable-linked-list-in-reverse/
• https://leetcode.com/problems/binary-tree-preorder-traversal/
• https://leetcode.com/problems/binary-tree-inorder-traversal/
• https://leetcode.com/problems/binary-tree-postorder-traversal/
• https://leetcode.com/problems/leaf-similar-trees/
• https://leetcode.com/problems/sZ59z6/
• https://leetcode.com/problems/sum-of-left-leaves/
• https://leetcode.com/problems/second-minimum-node-in-a-binary-tree/
• https://leetcode.com/problems/find-all-the-lonely-nodes/
• https://leetcode.com/problems/two-sum-bsts/ +duplicate
• https://leetcode.com/problems/is-array-a-preorder-of-some-binary-tree/
• https://leetcode.com/problems/maximum-depth-of-binary-tree/
• https://leetcode.com/problems/minimum-depth-of-binary-tree/
• https://leetcode.com/problems/path-sum/
• https://leetcode.com/problems/sum-root-to-leaf-numbers/
• https://leetcode.com/problems/binary-tree-right-side-view/
• https://leetcode.com/problems/count-good-nodes-in-binary-tree/
• https://leetcode.com/problems/pseudo-palindromic-paths-in-a-binary-tree/
• https://leetcode.com/problems/sum-of-nodes-with-even-valued-grandparent/
• https://leetcode.com/problems/smallest-string-starting-from-leaf/
• https://leetcode.com/problems/maximum-difference-between-node-and-ancestor/
• https://leetcode.com/problems/sum-of-root-to-leaf-binary-numbers/
• https://leetcode.com/problems/add-one-row-to-tree/
• https://leetcode.com/problems/longest-zigzag-path-in-a-binary-tree/
• https://leetcode.com/problems/flip-binary-tree-to-match-preorder-traversal/
• https://leetcode.com/problems/extract-kth-character-from-the-rope-tree/
• https://leetcode.com/problems/binary-tree-longest-consecutive-sequence/
• https://leetcode.com/problems/check-if-a-string-is-a-valid-sequence-from-root-to-leaves-path-in-a-binary-tree/
• https://leetcode.com/problems/boundary-of-binary-tree/
• https://leetcode.com/problems/maximum-depth-of-binary-tree/ +duplicate
• https://leetcode.com/problems/minimum-depth-of-binary-tree/ +duplicate
• https://leetcode.com/problems/univalued-binary-tree/
• https://leetcode.com/problems/same-tree/
• https://leetcode.com/problems/symmetric-tree/
• https://leetcode.com/problems/flip-equivalent-binary-trees/
• https://leetcode.com/problems/find-a-corresponding-node-of-a-binary-tree-in-a-clone-of-that-tree/
• https://leetcode.com/problems/balanced-binary-tree/
• https://leetcode.com/problems/invert-binary-tree/
• https://leetcode.com/problems/merge-two-binary-trees/
• https://leetcode.com/problems/evaluate-boolean-binary-tree/
• https://leetcode.com/problems/most-frequent-subtree-sum/
• https://leetcode.com/problems/binary-tree-tilt/
• https://leetcode.com/problems/construct-string-from-binary-tree/
• https://leetcode.com/problems/count-nodes-equal-to-average-of-subtree/
• https://leetcode.com/problems/maximum-difference-between-node-and-ancestor/ +duplicate
• https://leetcode.com/problems/k-th-largest-perfect-subtree-size-in-binary-tree/
• https://leetcode.com/problems/maximum-product-of-splitted-binary-tree/
• https://leetcode.com/problems/longest-zigzag-path-in-a-binary-tree/ +duplicate
• https://leetcode.com/problems/binary-tree-coloring-game/ +duplicate
• https://leetcode.com/problems/subtree-of-another-tree/
• https://leetcode.com/problems/number-of-good-leaf-nodes-pairs/
• https://leetcode.com/problems/KnLfVT/
• https://leetcode.com/problems/binary-tree-longest-consecutive-sequence/ +duplicate
• https://leetcode.com/problems/count-univalue-subtrees/
• https://leetcode.com/problems/count-nodes-equal-to-sum-of-descendants/
• https://leetcode.com/problems/equal-tree-partition/
• https://leetcode.com/problems/maximum-average-subtree/
• https://leetcode.com/problems/count-nodes-that-are-great-enough/
• https://leetcode.com/problems/largest-bst-subtree/
• https://leetcode.com/problems/find-leaves-of-binary-tree/
• https://leetcode.com/problems/binary-tree-upside-down/
• https://leetcode.com/problems/check-if-two-expression-trees-are-equivalent/
• https://leetcode.com/problems/binary-tree-pruning/
• https://leetcode.com/problems/delete-leaves-with-a-given-value/
• https://leetcode.com/problems/delete-nodes-and-return-forest/
• https://leetcode.com/problems/convert-bst-to-greater-tree/
• https://leetcode.com/problems/binary-search-tree-to-greater-sum-tree/
• https://leetcode.com/problems/smallest-subtree-with-all-the-deepest-nodes/
• https://leetcode.com/problems/insufficient-nodes-in-root-to-leaf-paths/
• https://leetcode.com/problems/diameter-of-binary-tree/ +duplicate
• https://leetcode.com/problems/longest-univalue-path/ +duplicate
• https://leetcode.com/problems/binary-tree-maximum-path-sum/ +duplicate
• https://leetcode.com/problems/amount-of-time-for-binary-tree-to-be-infected/ +duplicate
• https://leetcode.com/problems/binary-tree-longest-consecutive-sequence-ii/ +duplicate
• https://leetcode.com/problems/binary-tree-paths/
• https://leetcode.com/problems/path-sum-ii/
• https://leetcode.com/problems/path-sum-iii/ +duplicate
• https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree/
• https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree/
• https://leetcode.com/problems/lowest-common-ancestor-of-deepest-leaves/
• https://leetcode.com/problems/step-by-step-directions-from-a-binary-tree-node-to-another/
• https://leetcode.com/problems/find-distance-in-a-binary-tree/
• https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-ii/
• https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iii/
• https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree-iv/
• https://leetcode.com/problems/validate-binary-search-tree/
• https://leetcode.com/problems/kth-smallest-element-in-a-bst/
• https://leetcode.com/problems/find-mode-in-binary-search-tree/
• https://leetcode.com/problems/recover-binary-search-tree/
• https://leetcode.com/problems/search-in-a-binary-search-tree/
• https://leetcode.com/problems/minimum-absolute-difference-in-bst/
• https://leetcode.com/problems/minimum-distance-between-bst-nodes/
• https://leetcode.com/problems/all-elements-in-two-binary-search-trees/
• https://leetcode.com/problems/range-sum-of-bst/
• https://leetcode.com/problems/increasing-order-search-tree/
• https://leetcode.com/problems/closest-nodes-queries-in-a-binary-search-tree/ +duplicate
• https://leetcode.com/problems/two-sum-iv-input-is-a-bst/
• https://leetcode.com/problems/maximum-sum-bst-in-binary-tree/
• https://leetcode.com/problems/merge-bsts-to-create-single-bst/
• https://leetcode.com/problems/inorder-successor-in-bst/
• https://leetcode.com/problems/inorder-successor-in-bst-ii/
• https://leetcode.com/problems/closest-binary-search-tree-value/
• https://leetcode.com/problems/closest-binary-search-tree-value-ii/
• https://leetcode.com/problems/verify-preorder-sequence-in-binary-search-tree/
• https://leetcode.com/problems/depth-of-bst-given-insertion-order/
• https://leetcode.com/problems/convert-sorted-array-to-binary-search-tree/
• https://leetcode.com/problems/maximum-binary-tree/
• https://leetcode.com/problems/maximum-binary-tree-ii/
• https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal/
• https://leetcode.com/problems/balance-a-binary-search-tree/
• https://leetcode.com/problems/create-binary-tree-from-descriptions/
• https://leetcode.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal/
• https://leetcode.com/problems/construct-binary-tree-from-inorder-and-postorder-traversal/
• https://leetcode.com/problems/construct-binary-tree-from-preorder-and-postorder-traversal/
• https://leetcode.com/problems/recover-a-tree-from-preorder-traversal/
• https://leetcode.com/problems/construct-binary-tree-from-string/
• https://leetcode.com/problems/design-an-expression-tree-with-evaluate-function/ +duplicate
• https://leetcode.com/problems/build-binary-expression-tree-from-infix-expression/ +duplicate
• https://leetcode.com/problems/insert-into-a-binary-search-tree/
• https://leetcode.com/problems/delete-node-in-a-bst/
• https://leetcode.com/problems/trim-a-binary-search-tree/
• https://leetcode.com/problems/split-bst/
• https://leetcode.com/problems/change-the-root-of-a-binary-tree/
• https://leetcode.com/problems/house-robber-iii/ +duplicate
• https://leetcode.com/problems/binary-tree-cameras/ +duplicate
• https://leetcode.com/problems/er-cha-shu-ren-wu-diao-du/ +duplicate
• https://leetcode.com/problems/er-cha-shu-ran-se-UGC/ +duplicate
• https://leetcode.com/problems/U7WvvU/ +duplicate
• https://leetcode.com/problems/minimum-flips-in-binary-tree-to-get-result/ +duplicate
• https://leetcode.com/problems/binary-tree-level-order-traversal/
• https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal/
• https://leetcode.com/problems/binary-tree-level-order-traversal-ii/
• https://leetcode.com/problems/binary-tree-right-side-view/ +duplicate
• https://leetcode.com/problems/find-bottom-left-tree-value/
• https://leetcode.com/problems/find-largest-value-in-each-tree-row/
• https://leetcode.com/problems/average-of-levels-in-binary-tree/
• https://leetcode.com/problems/maximum-level-sum-of-a-binary-tree/
• https://leetcode.com/problems/cousins-in-binary-tree/
• https://leetcode.com/problems/kth-largest-sum-in-a-binary-tree/
• https://leetcode.com/problems/deepest-leaves-sum/
• https://leetcode.com/problems/reverse-odd-levels-of-binary-tree/
• https://leetcode.com/problems/even-odd-tree/
• https://leetcode.com/problems/add-one-row-to-tree/ +duplicate
• https://leetcode.com/problems/minimum-number-of-operations-to-sort-a-binary-tree-by-level/
• https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree/
• https://leetcode.com/problems/cousins-in-binary-tree-ii/
• https://leetcode.com/problems/complete-binary-tree-inserter/
• https://leetcode.com/problems/verify-preorder-serialization-of-a-binary-tree/
• https://leetcode.com/problems/check-completeness-of-a-binary-tree/
• https://leetcode.com/problems/maximum-width-of-binary-tree/
• https://leetcode.com/problems/find-the-level-of-tree-with-minimum-sum/
• https://leetcode.com/problems/find-nearest-right-node-in-binary-tree/
• https://leetcode.com/problems/closest-leaf-in-a-binary-tree/
• https://leetcode.com/problems/correct-a-binary-tree/
• https://leetcode.com/problems/flatten-binary-tree-to-linked-list/
• https://leetcode.com/problems/linked-list-in-binary-tree/
• https://leetcode.com/problems/convert-sorted-list-to-binary-search-tree/
• https://leetcode.com/problems/populating-next-right-pointers-in-each-node/
• https://leetcode.com/problems/populating-next-right-pointers-in-each-node-ii/
• https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list/
• https://leetcode.com/problems/n-ary-tree-preorder-traversal/
• https://leetcode.com/problems/n-ary-tree-postorder-traversal/
• https://leetcode.com/problems/maximum-depth-of-n-ary-tree/
• https://leetcode.com/problems/n-ary-tree-level-order-traversal/
• https://leetcode.com/problems/construct-quad-tree/
• https://leetcode.com/problems/logical-or-of-two-binary-grids-represented-as-quad-trees/
• https://leetcode.com/problems/serialize-and-deserialize-n-ary-tree/
• https://leetcode.com/problems/clone-n-ary-tree/
• https://leetcode.com/problems/find-root-of-n-ary-tree/
• https://leetcode.com/problems/diameter-of-n-ary-tree/ +duplicate
• https://leetcode.com/problems/move-sub-tree-of-n-ary-tree/
• https://leetcode.com/problems/serialize-and-deserialize-binary-tree/
• https://leetcode.com/problems/serialize-and-deserialize-bst/
• https://leetcode.com/problems/find-duplicate-subtrees/
• https://leetcode.com/problems/binary-search-tree-iterator/
• https://leetcode.com/problems/find-elements-in-a-contaminated-binary-tree/ +duplicate
• https://leetcode.com/problems/path-in-zigzag-labelled-binary-tree/
• https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree/
• https://leetcode.com/problems/print-binary-tree/
• https://leetcode.com/problems/distribute-coins-in-binary-tree/ +duplicate
• https://leetcode.com/problems/count-complete-tree-nodes/ +duplicate
• https://leetcode.com/problems/count-nodes-with-the-highest-score/
• https://leetcode.com/problems/make-costs-of-paths-equal-in-a-binary-tree/ +duplicate
• https://leetcode.com/problems/cycle-length-queries-in-a-tree/ +duplicate
• https://leetcode.com/problems/height-of-binary-tree-after-subtree-removal-queries/
• https://leetcode.com/problems/hSRGyL/ +duplicate
• https://leetcode.com/problems/QO5KpG/
• https://leetcode.com/problems/WInSav/
• https://leetcode.com/problems/binary-tree-vertical-order-traversal/
• https://leetcode.com/problems/path-sum-iv/
• https://leetcode.com/problems/binary-search-tree-iterator-ii/
• https://leetcode.com/problems/height-of-special-binary-tree/
• https://leetcode.com/problems/clone-binary-tree-with-random-pointer/
• https://leetcode.com/problems/number-of-nodes-with-value-one/
• https://leetcode.com/problems/encode-n-ary-tree-to-binary-tree/
• https://leetcode.com/problems/subtree-removal-game-with-fibonacci-tree/ +duplicate
• https://leetcode.com/problems/reachable-nodes-with-restrictions/
• https://leetcode.com/problems/reorder-routes-to-make-all-paths-lead-to-the-city-zero/
• https://leetcode.com/problems/kill-process/
• https://leetcode.com/problems/time-needed-to-inform-all-employees/
• https://leetcode.com/problems/minimum-time-to-collect-all-apples-in-a-tree/
• https://leetcode.com/problems/frog-position-after-t-seconds/
• https://leetcode.com/problems/count-pairs-of-connectable-servers-in-a-weighted-tree-network/ +duplicate
• https://leetcode.com/problems/maximize-the-number-of-target-nodes-after-connecting-trees-i/
• https://leetcode.com/problems/most-profitable-path-in-a-tree/
• https://leetcode.com/problems/maximize-the-number-of-target-nodes-after-connecting-trees-ii/
• https://leetcode.com/problems/tree-of-coprimes/ +duplicate
• https://leetcode.com/problems/longest-special-path/
• https://leetcode.com/problems/count-paths-that-can-form-a-palindrome-in-a-tree/ +duplicate
• https://leetcode.com/problems/count-the-number-of-good-nodes/
• https://leetcode.com/problems/number-of-nodes-in-the-sub-tree-with-the-same-label/
• https://leetcode.com/problems/maximum-number-of-k-divisible-components/
• https://leetcode.com/problems/minimum-fuel-cost-to-report-to-the-capital/ +duplicate
• https://leetcode.com/problems/find-number-of-coins-to-place-in-tree-nodes/
• https://leetcode.com/problems/create-components-with-same-value/
• https://leetcode.com/problems/delete-tree-nodes/
• https://leetcode.com/problems/maximum-subtree-of-the-same-color/
• https://leetcode.com/problems/find-subtree-sizes-after-changes/
• https://leetcode.com/problems/longest-path-with-different-adjacent-characters/ +duplicate
• https://leetcode.com/problems/find-minimum-diameter-after-merging-two-trees/ +duplicate
• https://leetcode.com/problems/count-subtrees-with-max-distance-between-cities/ +duplicate
• https://leetcode.com/problems/difference-between-maximum-and-minimum-price-sum/ +duplicate
• https://leetcode.com/problems/tree-diameter/ +duplicate
• https://leetcode.com/problems/find-the-last-marked-nodes-in-tree/
• https://leetcode.com/problems/minimum-score-after-removals-on-a-tree/
• https://leetcode.com/problems/check-if-dfs-strings-are-palindromes/
• https://leetcode.com/problems/minimum-height-trees/ +duplicate
• https://leetcode.com/problems/collect-coins-in-a-tree/ +duplicate https://leetcode.com/problems/kth-ancestor-of-a-tree-node/solution/mo-ban-jiang-jie-shu-shang-bei-zeng-suan-v3rw/
• https://leetcode.com/problems/kth-ancestor-of-a-tree-node/
• https://leetcode.com/problems/minimum-edge-weight-equilibrium-queries-in-a-tree/
• https://leetcode.com/problems/closest-node-to-path-in-tree/
• https://leetcode.com/problems/smallest-missing-genetic-value-in-each-subtree/
• https://leetcode.com/problems/count-valid-paths-in-a-tree/ +duplicate
• https://leetcode.com/problems/number-of-good-paths/ +duplicate
• https://leetcode.com/problems/number-of-ways-to-reconstruct-a-tree/
• https://leetcode.com/problems/maximum-xor-of-two-non-overlapping-subtrees/ +duplicate
• https://leetcode.com/problems/letter-combinations-of-a-phone-number/
• https://leetcode.com/problems/subsets/
• https://leetcode.com/problems/letter-case-permutation/
• https://leetcode.com/problems/iterator-for-combination/
• https://leetcode.com/problems/target-sum/ +duplicate
• https://leetcode.com/problems/UEcfPD/
• https://leetcode.com/problems/maximum-rows-covered-by-columns/
• https://leetcode.com/problems/maximum-length-of-a-concatenated-string-with-unique-characters/
• https://leetcode.com/problems/maximum-points-in-an-archery-competition/
• https://leetcode.com/problems/maximum-score-words-formed-by-letters/
• https://leetcode.com/problems/maximum-good-people-based-on-statements/
• https://leetcode.com/problems/the-number-of-beautiful-subsets/ +duplicate
• https://leetcode.com/problems/number-of-possible-sets-of-closing-branches/ +duplicate
• https://leetcode.com/problems/maximum-number-of-achievable-transfer-requests/
• https://leetcode.com/problems/count-subtrees-with-max-distance-between-cities/ +duplicate
• https://leetcode.com/problems/generalized-abbreviation/
• https://leetcode.com/problems/factor-combinations/
• https://leetcode.com/problems/combination-sum/
• https://leetcode.com/problems/palindrome-partitioning/
• https://leetcode.com/problems/find-the-punishment-number-of-an-integer/
• https://leetcode.com/problems/split-a-string-into-the-max-number-of-unique-substrings/
• https://leetcode.com/problems/splitting-a-string-into-descending-consecutive-values/
• https://leetcode.com/problems/additive-number/
• https://leetcode.com/problems/split-array-into-fibonacci-sequence/
• https://leetcode.com/problems/restore-ip-addresses/
• https://leetcode.com/problems/ambiguous-coordinates/
• https://leetcode.com/problems/word-break-ii/ +duplicate
• https://leetcode.com/problems/word-pattern-ii/
• https://leetcode.com/problems/combinations/
• https://leetcode.com/problems/combination-sum-iii/
• https://leetcode.com/problems/generate-parentheses/
• https://leetcode.com/problems/remove-invalid-parentheses/
• https://leetcode.com/problems/permutations/
• https://leetcode.com/problems/minimum-time-to-break-locks-i/ +duplicate
• https://leetcode.com/problems/n-queens/
• https://leetcode.com/problems/n-queens-ii/
• https://leetcode.com/problems/minimum-moves-to-spread-stones-over-grid/ +duplicate
• https://leetcode.com/problems/construct-the-lexicographically-largest-valid-sequence/
• https://leetcode.com/problems/verbal-arithmetic-puzzle/
• https://leetcode.com/problems/longest-subsequence-repeated-k-times/
• https://leetcode.com/problems/palindrome-permutation-ii/
• https://leetcode.com/problems/generate-binary-strings-without-adjacent-zeros/ +duplicate
• https://leetcode.com/problems/numbers-with-same-consecutive-differences/
• https://leetcode.com/problems/the-k-th-lexicographical-string-of-all-happy-strings-of-length-n/
• https://leetcode.com/problems/path-with-maximum-gold/
• https://leetcode.com/problems/word-search/
• https://leetcode.com/problems/unique-paths-iii/
• https://leetcode.com/problems/maximum-score-words-formed-by-letters/ +duplicate
• https://leetcode.com/problems/matchsticks-to-square/ +duplicate
• https://leetcode.com/problems/word-search-ii/ +duplicate
• https://leetcode.com/problems/sudoku-solver/
• https://leetcode.com/problems/shopping-offers/ +duplicate
• https://leetcode.com/problems/tiling-a-rectangle-with-the-fewest-squares/
• https://leetcode.com/problems/24-game/
• https://leetcode.com/problems/expression-add-operators/
• https://leetcode.com/problems/word-ladder-ii/
• https://leetcode.com/problems/stickers-to-spell-word/ +duplicate
• https://leetcode.com/problems/number-of-valid-move-combinations-on-chessboard/
• https://leetcode.com/problems/find-the-k-sum-of-an-array/ +duplicate
• https://leetcode.com/problems/zuma-game/
• https://leetcode.com/problems/De4qBB/
• https://leetcode.com/problems/word-rectangle-lcci/
• https://leetcode.com/problems/the-knights-tour/
• https://leetcode.com/problems/strobogrammatic-number-ii/
• https://leetcode.com/problems/strobogrammatic-number-iii/
• https://leetcode.com/problems/minimum-unique-word-abbreviation/
• https://leetcode.com/problems/confusing-number-ii/
• https://leetcode.com/problems/subsets-ii/
• https://leetcode.com/problems/combination-sum-ii/
• https://leetcode.com/problems/non-decreasing-subsequences/
• https://leetcode.com/problems/permutations-ii/
• https://leetcode.com/problems/letter-tile-possibilities/ +duplicate

String

• https://leetcode.com/problems/find-beautiful-indices-in-the-given-array-ii/
• https://leetcode.com/problems/find-the-index-of-the-first-occurrence-in-a-string/
• https://leetcode.com/problems/rotate-string/
• https://leetcode.com/problems/longest-happy-prefix/
• https://leetcode.com/problems/number-of-subarrays-that-match-a-pattern-ii/
• https://leetcode.com/problems/form-array-by-concatenating-subarrays-of-another-array/
• https://leetcode.com/problems/maximum-repeating-substring/
• https://leetcode.com/problems/repeated-substring-pattern/
• https://leetcode.com/problems/find-beautiful-indices-in-the-given-array-ii/ +duplicate
• https://leetcode.com/problems/shortest-palindrome/
• https://leetcode.com/problems/repeated-string-match/
• https://leetcode.com/problems/find-all-good-strings/ +duplicate
• https://leetcode.com/problems/find-pattern-in-infinite-stream-ii/
• https://leetcode.com/problems/find-the-index-of-the-first-occurrence-in-a-string/ +duplicate
• https://leetcode.com/problems/sum-of-scores-of-built-strings/
• https://leetcode.com/problems/minimum-time-to-revert-word-to-initial-state-ii/
• https://leetcode.com/problems/count-prefix-and-suffix-pairs-ii/ +duplicate
• https://leetcode.com/problems/find-the-occurrence-of-first-almost-equal-substring/ +duplicate
• https://leetcode.com/problems/minimum-number-of-valid-strings-to-form-target-ii/ +duplicate
• https://leetcode.com/problems/maximum-deletions-on-a-string/ +duplicate
• https://leetcode.com/problems/count-beautiful-splits-in-an-array/
• https://leetcode.com/problems/number-of-ways-to-separate-numbers/ +duplicate
• https://leetcode.com/problems/longest-palindromic-substring/ +duplicate
• https://leetcode.com/problems/palindromic-substrings/
• https://leetcode.com/problems/shortest-palindrome/ +duplicate
• https://leetcode.com/problems/check-if-dfs-strings-are-palindromes/ +duplicate
• https://leetcode.com/problems/palindrome-partitioning-iv/ +duplicate
• https://leetcode.com/problems/maximum-product-of-the-length-of-two-palindromic-substrings/
• https://leetcode.com/problems/find-substring-with-given-hash-value/ +duplicate
• https://leetcode.com/problems/construct-string-with-minimum-cost/ +duplicate
• https://leetcode.com/problems/find-the-index-of-the-first-occurrence-in-a-string/ +duplicate
• https://leetcode.com/problems/repeated-dna-sequences/
• https://leetcode.com/problems/distinct-echo-substrings/
• https://leetcode.com/problems/maximum-number-of-occurrences-of-a-substring/ +duplicate
• https://leetcode.com/problems/k-divisible-elements-subarrays/ +duplicate
• https://leetcode.com/problems/construct-string-with-minimum-cost/ +duplicate
• https://leetcode.com/problems/linked-list-in-binary-tree/ +duplicate
• https://leetcode.com/problems/longest-duplicate-substring/
• https://leetcode.com/problems/maximum-length-of-repeated-subarray/
• https://leetcode.com/problems/longest-common-subpath/
• https://leetcode.com/problems/minimum-number-of-valid-strings-to-form-target-ii/ +duplicate
• https://leetcode.com/problems/unique-substrings-with-equal-digit-frequency/ +duplicate
• https://leetcode.com/problems/strings-differ-by-one-character/
• https://leetcode.com/problems/longest-repeating-substring/
• https://leetcode.com/problems/last-substring-in-lexicographical-order/
• https://leetcode.com/problems/orderly-queue/
• https://leetcode.com/problems/find-the-lexicographically-largest-string-from-the-box-i/ +duplicate
• https://leetcode.com/problems/stream-of-characters/
• https://leetcode.com/problems/multi-search-lcci/
• https://leetcode.com/problems/string-matching-in-an-array/
• https://leetcode.com/problems/construct-string-with-minimum-cost/ +duplicate
• https://leetcode.com/problems/minimum-number-of-valid-strings-to-form-target-ii/ +duplicate
• https://leetcode.com/problems/last-substring-in-lexicographical-order/ +duplicate
• https://leetcode.com/problems/largest-merge-of-two-strings/ +duplicate
• https://leetcode.com/problems/shortest-and-lexicographically-smallest-beautiful-string/ +duplicate
• https://leetcode.com/problems/construct-string-with-minimum-cost/ +duplicate
• https://leetcode.com/problems/longest-duplicate-substring/ +duplicate
• https://leetcode.com/problems/maximum-length-of-repeated-subarray/ +duplicate
• https://leetcode.com/problems/longest-common-subpath/ +duplicate
• https://leetcode.com/problems/string-matching-in-an-array/ +duplicate
• https://leetcode.com/problems/shortest-uncommon-substring-in-an-array/
• https://leetcode.com/problems/distinct-echo-substrings/ +duplicate
• https://leetcode.com/problems/count-beautiful-splits-in-an-array/ +duplicate
• https://leetcode.com/problems/substring-xor-queries/ +duplicate
• https://leetcode.com/problems/number-of-distinct-substrings-in-a-string/
• https://leetcode.com/problems/longest-repeating-substring/ +duplicate
• https://leetcode.com/problems/equalize-strings-by-adding-or-removing-characters-at-ends/
• https://leetcode.com/problems/number-of-matching-subsequences/
• https://leetcode.com/problems/freedom-trail/ +duplicate
• https://leetcode.com/problems/longest-subsequence-repeated-k-times/ +duplicate
• https://leetcode.com/problems/shortest-way-to-form-string/
• https://leetcode.com/problems/minimum-window-subsequence/