[勇者闯LeetCode] 190. Reverse Bits
[勇者闯LeetCode] 190. Reverse Bits
Description
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).
Information
- Tags: Bit Manipulation
- Difficulty: Easy
Solution
result初值为0，32次循环：
每次result先左移一位，然后将n与1进行&操作取出n的最后一位，通过|操作放到result的最后一位上，n右移一位。
C++ Code
class Solution {
public:uint32_t reverseBits(uint32_t n) {uint32_t result = 0;int count = 32;while (count--) {result <<= 1;result |= n & 1;n >>= 1;}
return result;}
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