[Leetcode]190. Reverse Bits

最新推荐文章于 2024-05-08 17:39:49 发布

煮茶听雪

最新推荐文章于 2024-05-08 17:39:49 发布

阅读量281

点赞数

分类专栏： LeetCode

本文链接：https://blog.csdn.net/sunhero2010/article/details/51918136

版权

LeetCode 专栏收录该内容

116 篇文章

订阅专栏

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).

Follow up:

If this function is called many times, how would you optimize it?

class Solution {
public:
    uint32_t reverseBits(uint32_t n) {
        uint32_t value = 0;
        for (int i = 0; i != 32; ++i)
            value = (value << 1) | ((n >> i) & 1);
        return value;
    }
};