#include <bits/stdc++.h>
#include<iostream>
#include<map>
#include<vector>
#include <algorithm>
#include<math.h>
#include <iomanip>
#include<set>
#include <numeric>
#include<string>
using ll = long long;
using namespace std;

int main()
{
    ll t, n, tmp;
    cin >> t;
    for (int i = 0; i < t; i++){
        cin >> n;
        tmp = (ll)floor(pow(n, 0.5));
        cout << ((tmp*tmp <= n) ? tmp : tmp-1) << endl;
    }
}