HDU 1017 A Mathematical Curiosity

数学问题，没难度

附代码

#include <iostream>
#include <cstdio>

using namespace std;

int main()
{
    int N;
    scanf("%d",&N);
    while(N--){
        int n,m,a,b;
        int num=0,i=0;
        while(~scanf("%d%d",&n,&m)&&n){
            num=0;
            for(b=1;b<n;b++){
                for(a=1;a<b;a++){
                    if((a*a+b*b+m)%(a*b) == 0)
                    num++;
                }

            }

            printf("Case %d: %d
",++i,num);

        }
        if(N != 0)
            printf("
");
    }
    return 0;
}