水题总是不让人欢快的AC,int型输入竟然WA,sqrt(int)的时间竟然TLE,
#include<cstdio>
#include<iostream>
#include<vector>
#include<queue>
#include<algorithm>
#include<string>
#include<cstdlib>
#include<map>
#include<set>
#include<cmath>
#include<cstring>
#include<cctype>
#include<climits>
#include<memory>
#include<climits>
#include<cstdlib>
using namespace std;
#define LL long long
#define INT (1<<31)-1;
LL a[10][105],b[10][105];
int main()
{
LL n;
while(cin>>n&&n)
{
if(n==floor(sqrt(n))*floor(sqrt(n)))
cout<<"yes"<<endl;
else
cout<<"no"<<endl;
}
return 0;
}