import java.util.*;

class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int t = sc.nextInt();
        for (int i = 0; i < t; i++) {
            long n = sc.nextLong();
            in: for (long j = (int) (Math.sqrt(n) - 1); j <= n; j++) {
                if (j * j > n) {
                    System.out.println(j - 1);
                    break in;
                }
            }
        }
    }

}