結果
問題 | No.264 じゃんけん |
ユーザー | triggerwaffle |
提出日時 | 2020-09-02 02:23:05 |
言語 | Rust (1.77.0 + proconio) |
結果 |
WA
|
実行時間 | - |
コード長 | 733 bytes |
コンパイル時間 | 12,577 ms |
コンパイル使用メモリ | 390,928 KB |
実行使用メモリ | 6,824 KB |
最終ジャッジ日時 | 2024-11-21 06:12:48 |
合計ジャッジ時間 | 13,529 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | WA | - |
testcase_01 | WA | - |
testcase_02 | WA | - |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | WA | - |
コンパイルメッセージ
warning: variable `ans` is assigned to, but never used --> src/main.rs:19:13 | 19 | let mut ans = String::new(); | ^^^ | = note: consider using `_ans` instead = note: `#[warn(unused_variables)]` on by default warning: value assigned to `ans` is never read --> src/main.rs:20:19 | 20 | if a-b == 0 { ans = String::from("Drew"); } | ^^^ | = help: maybe it is overwritten before being read? = note: `#[warn(unused_assignments)]` on by default warning: value assigned to `ans` is never read --> src/main.rs:21:20 | 21 | if a-b == -2 { ans = String::from("Lose"); } | ^^^ | = help: maybe it is overwritten before being read? warning: value assigned to `ans` is never read --> src/main.rs:22:19 | 22 | if a-b == 1 { ans = String::from("Lose"); } | ^^^ | = help: maybe it is overwritten before being read? warning: value assigned to `ans` is never read --> src/main.rs:23:11 | 23 | else {ans = String::from("Won");} | ^^^ | = help: maybe it is overwritten before being read?
ソースコード
use std::io::*; use std::str::FromStr; fn read<T: FromStr>() -> T { let stdin = stdin(); let stdin = stdin.lock(); let token: String = stdin .bytes() .map(|c| c.expect("failed to read char") as char) .skip_while(|c| c.is_whitespace()) .take_while(|c| !c.is_whitespace()) .collect(); token.parse().ok().expect("failed to parse token") } fn main() { let a: i64 = read(); // (*) let b: i64 = read(); let mut ans = String::new(); if a-b == 0 { ans = String::from("Drew"); } if a-b == -2 { ans = String::from("Lose"); } if a-b == 1 { ans = String::from("Lose"); } else {ans = String::from("Won");} let ans = a * (a+1)/2; println!("{}", ans); }