fn main() {
    let mut t = String::new();
    std::io::stdin().read_line(&mut t).ok();
    let t: usize = t.trim().parse().unwrap();

    for _ in 0..t {
        let mut n = String::new();
        std::io::stdin().read_line(&mut n).ok();
        let n: usize = n.trim().parse().unwrap();
        let val = (n as f64).sqrt().floor() as usize;
        let val = if val * val > n { val-1 } else if (val+1)*(val+1) <= n { val+1 } else { val };
        println!("{}", val);
    }
}