#include <bits/stdc++.h>
using namespace std;
#define ll long long
ll a[100000];
int main(){
	ll s;
	cin>>s;
	double ans=0;
	 for (ll i=1;i<=s;i++){
	 	cin>>a[i];
	 	ans=sqrt(a[i]);
	 	if (ans-int(ans)==0){
	 		cout<<"Yes"<<endl;
		 }
		 else cout<<"No"<<endl;
	 }
	 return 0;
}

测试详情