题目:
题解:
class Solution:# @param n, an integer# @return an integerdef reverseBits(self, n):n = (n >> 16) | (n << 16);n = ((n & 0xff00ff00) >> 8) | ((n & 0x00ff00ff) << 8);n = ((n & 0xf0f0f0f0) >> 4) | ((n & 0x0f0f0f0f) << 4);n = ((n & 0xcccccccc) >> 2) | ((n & 0x33333333) << 2);n = ((n & 0xaaaaaaaa) >> 1) | ((n & 0x55555555) << 1);return n;