# 2220. Minimum Bit Flips to Convert Number """ a bit flip of a number 'x' is choosing a bit in the binary representation of 'x' and flipping it from either 0 to 1 or 1 to 0. given two integers 'start' and 'goal', return the minimum number of bit flips to convert 'start' to 'goal'. """ class Solution(object): def minBitFlips(self, start, goal): """ :type start: int :type goal: int :rtype: int """ return (start ^ goal).bit_count() if __name__ == "__main__": obj = Solution() print(obj.minBitFlips(10, 7)) print(obj.minBitFlips(3, 4))