s4553711
9/20/2017 - 3:02 PM

190.cpp

class Solution {
public:
    uint32_t reverseBits(uint32_t n) {
        uint32_t result;
        int k = 32;
        while(k--) {
            result <<= 1;
            result += n&1;
            n >>= 1;
        }
        return result;
    }
};