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867-transpose-matrix.md

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867. Transpose Matrix - 转置矩阵

给定一个矩阵 A, 返回 A 的转置矩阵。

矩阵的转置是指将矩阵的主对角线翻转,交换矩阵的行索引与列索引。

 

示例 1:

输入:[[1,2,3],[4,5,6],[7,8,9]]
输出:[[1,4,7],[2,5,8],[3,6,9]]

示例 2:

输入:[[1,2,3],[4,5,6]]
输出:[[1,4],[2,5],[3,6]]

 

提示:

  1. 1 <= A.length <= 1000
  2. 1 <= A[0].length <= 1000

题目标签:Array

题目链接:LeetCode / LeetCode中国

题解

Python里转置矩阵写法非常简单:list(zip(*A))

Language Runtime Memory
python3 92 ms N/A
class Solution:
    def transpose(self, A):
        """
        :type A: List[List[int]]
        :rtype: List[List[int]]
        """
        return list(zip(*A))