AtCoder Beginner Contest 239 B

https://atcoder.jp/contests/abc239/tasks/abc239_b

余りと同じで商もPythonならそのままなのですが。

// Integer Division
#![allow(non_snake_case)]

use std::collections::HashSet;

fn read<T: std::str::FromStr>() -> T {
    let mut line = String::new();
    std::io::stdin().read_line(&mut line).ok();
    line.trim().parse().ok().unwrap()
}

fn int_div(n: i64, d: i64) -> i64 {
    if n >= 0 {
        n / d
    }
    else {
        (n - d + 1) / d
    }
}

fn main() {
    let X: i64 = read();
    println!("{}", int_div(X, 10))
}