Leetcode-190 Reverse Bits

时间:2021-11-10 20:02:01

#190. 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).

题解:移位运算。

class Solution {
public:
uint32_t reverseBits(uint32_t n) {
int t=32;
uint32_t num;
while(t--)
{
if(n&1==1)
{
n=n>>1;
num+=1<<t;
}
else
{
n=n>>1;
num+=0<<t;
}
}
return num;
}
};