2220. Minimum Bit Flips to Convert Number (C++).cpp

class Solution {
public:
    int minBitFlips(int start, int goal) {
        int count = 0; // Initialize the count of bit flips required

        // Continue processing until both start and goal are reduced to 0
        while (start || goal) {
            // Check if the least significant bit of start differs from the least significant bit of goal
            if ((start & 1) != (goal & 1)) {
                count += 1; 
            }

            // Right shift both start and goal by 1 bit (essentially dividing by 2)
            start = start / 2; 
            goal = goal / 2;   
        }

        return count; 
    }
};