求两个二进制中不一样的个数

#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
#include<Windows.h>
int main()
{
    unsigned int a = 0;
    unsigned int b = 0;
    int count = 0;
    printf("请输入两个数字");
    scanf("%d %d", &a, &b);
    while (a != 0 || b != 0)                    
    {
        if (a % 2 == b % 2)
        {
            ;
        }
        else
        {
            count++;

        }
        a = a / 2;
        b = b / 2;
    }
    printf("%d ", count);
       system("pause");
    return 0;
}