题解 | #平方因子#

#include <iostream>
#include <cmath>

using namespace std;

int main () {
	int n;
	while (cin >> n){
		if (n == 0){
			break;
		}
		int answer = 0;
		for (int k = 1; k <= sqrt(n); k++){
			if (n % (k * k) == 0){
				answer++;
			}
		}
		if (answer > 1){
			cout << "Yes" << endl;
		}
		else{
			cout << "No" << endl;
		}
	}
	return 0;
}