【杭电ACM】1.2.3 hide handkerchief

【杭电ACM】1.2.3  hide handkerchief

http://acm.hdu.edu.cn/game/entry/problem/show.php?chapterid=1&sectionid=2&problemid=6

#include <iostream>
using namespace std;

int gcd(int a, int b){
        if(b == 0)
            return a;
        return gcd(b, a % b);
    }

bool relativelyPrime(int a, int b){
    if(gcd(a, b) == 1)
        return true;
    else
        return false;
}
int main(){
    int n, m;
    while(cin >> n >> m){
        if(n == -1 && m == -1)
            break;
        if(relativelyPrime(n , m))
            cout << "YES" << endl;
        else
            cout << "POOR Haha" << endl;
    }
    return 0;
}