fn main() { let v = read_vec::(); let a = v[0]; let b = v[1]; println!("{}", (b/a).ceil()); } fn read() -> T { let mut s = String::new(); std::io::stdin().read_line(&mut s).ok(); s.trim().parse().ok().unwrap() } fn read_vec() -> Vec { read::().split_whitespace() .map(|e| e.parse().ok().unwrap()).collect() }