90分啊！

#include<bits/stdc++.h>
using namespace std;
int n,x;
char ch;
int main()
{
	cin>>n;
	for(register int i=1;i<=n;i++)
	{
		cin>>x;
		int k=sqrt(2*(x-1));
		if(k*(k+1)==2*(x-1)) cout<<1<<endl;
		else
		cout<<0<<endl;
	}
	return 0;
}