两个int（32位）整数m和n的二进制表达中，有多少个位(bit)不同？

#include<stdio.h>#include<stdlib.h>int bit_difference(int a, int b){    int tmp = 0;    int num = 0;    tmp = a^b;    while (tmp)    {        num++;        tmp = tmp&(tmp - 1);    }    return num;}int main(){    int count = 0;    int num1 = 0;    int num2 = 0;    printf("请输入两个数，用空格隔开\n");    scanf_s("%d%d", &num1, &num2);    count = bit_difference(num1, num2);    printf("不同的bit有%d位\n", count);    system("pause");    return 0;}