LeetCode-Reverse Bits-解題報告

原題鏈接 https://leetcode.com/problems/reverse-bits/

Reverse bits of a given 32 bits unsigned integer.

For example, given input 43261596 (represented in binary as 00000010100101000001111010011100), return 964176192 (represented in binary as 00111001011110000010100101000000).

反轉位。

class Solution {
public:
    uint32_t reverseBits(uint32_t n) {
        uint32_t ans = 0;
        int k = 32;
        while(k--)
        {
            ans = ans << 1;
            ans = ans | ( n & 1);
            n = n >> 1;
        }
        return ans;
    }
};