c语言问题 求解答 很着急！

Question

Answer 1

scanf()正确写法： scanf("%d %d",&m,&n);

#include <stdio.h>
#include<math.h>

int main()
{
    int m, n, r;
    scanf("%d %d",&m,&n);
    while((r=m%n!=0))
    {
        m=n;
        n=r;
        printf("%d",n);
    }

    return 0;
}