求两个数二进制中不同位的个数

#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>

int main()
{
    int m, n, count = 0;
    scanf("%d %d", &m, &n);
    int tmp = m ^ n;
    while (tmp)
    {
        tmp = tmp & (tmp - 1);
        count++;
    }
    printf("%d", count);
    return 0;
}