Pallo

use std::io::{stdin, BufRead, BufReader};

fn main() {
    let mut stdin = BufReader::new(stdin());
    let mut cur_line = String::new();

    stdin.read_line(&mut cur_line).unwrap();
    let t: usize = cur_line
        .trim()
        .parse().unwrap();

    for _ in 0..t {
        cur_line.clear();
        stdin.read_line(&mut cur_line).unwrap();
        let nums = cur_line
            .split_whitespace()
            .map(|s| s.parse::<u64>().unwrap()).collect::<Vec<_>>();

        if let &[n, m, k] = &nums[..] {
            let x = k / (n - 1) + k / (m - 1) - k / ((n-1)*(m-1));
            println!("{}", x);
        }
    }
}

Test 1

Group: 1, 2, 3

Verdict: WRONG ANSWER

Test 2

Group: 2, 3

Verdict: WRONG ANSWER

Test 3

Group: 3

Verdict: WRONG ANSWER