coins and triangle

#include <iostream>
using namespace std;

int main() {
	// your code goes here
	int t;
	cin>>t;
	while(t>0)
	{
	   int n;
	   cin>>n;
	   int r=0;
	   
	   int i;
	   for( i=1;((i*(i+1))/2)<=n;i++)
	   {
	      r=i;
        
	      
	   }
	   cout<<r<<endl;
	   t--;
	}
	return 0;
}