use std::io::{self, Read}; #[derive(Debug)] struct Input { n: i32, k: i32, } #[derive(Debug)] enum MatchResult { Won, Lost, Drew, } fn next_token(cin_lock: &mut io::StdinLock) -> String { cin_lock .by_ref() .bytes() .map(|c| c.unwrap() as char) .skip_while(|c| c.is_whitespace()) .take_while(|c| !c.is_whitespace()) .collect::() } fn read_input(cin_lock: &mut io::StdinLock) -> Input { Input { n: next_token(cin_lock).parse().unwrap(), k: next_token(cin_lock).parse().unwrap(), } } fn solve(input: Input, _cin_lock: &mut io::StdinLock) { let answer = evaluate(input.n, input.k); println!("{:?}", answer); } fn evaluate(mine: i32, others: i32) -> MatchResult { // r: 0 => r=D s=W p=L // s: 1 => r=L s=D P=W // p: 2 => r=W s=L p=D if (mine + 1) % 3 == others { MatchResult::Won } else if mine == others { MatchResult::Drew } else { MatchResult::Lost } } fn main() { let cin = io::stdin(); let mut cin_lock = cin.lock(); let input = read_input(&mut cin_lock); solve(input, &mut cin_lock); }