HDU 2092 整数解

#include <iostream>
#include <cmath>
using namespace std;

int main(){
    int a, b;
    int x, y;
    bool flag;
    while(cin >> a >> b){
        if(a == 0 && b ==0)
            break;

        if(b == 0){
            cout << "Yes" << endl;
            continue;
        }

        int min_b = abs(b) * -1;
        int max_b = abs(b);

        flag = false;
        for(int i = min_b; i <= max_b; i++){
            if(i == 0 || b % i)
                continue;
            //cout << i << endl;
            int y = b / i;


            if(i + y == a){
                cout << "Yes" << endl;
                flag = true;
                break;
            }
        }

        if(!flag)
            cout << "No" << endl;

    }

    return 0;
}