結果
問題 |
No.405 ローマ数字の腕時計
|
ユーザー |
|
提出日時 | 2019-04-10 18:22:46 |
言語 | Haskell (9.10.1) |
結果 |
AC
|
実行時間 | 2 ms / 2,000 ms |
コード長 | 435 bytes |
コンパイル時間 | 3,550 ms |
コンパイル使用メモリ | 171,904 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-07-06 19:22:19 |
合計ジャッジ時間 | 2,266 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
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ファイルパターン | 結果 |
---|---|
other | AC * 27 |
コンパイルメッセージ
Loaded package environment from /home/judge/.ghc/x86_64-linux-9.8.2/environments/default [1 of 2] Compiling Main ( Main.hs, Main.o ) Main.hs:15:34: warning: [GHC-63394] [-Wx-partial] In the use of ‘head’ (imported from Prelude, but defined in GHC.List): "This is a partial function, it throws an error on empty lists. Use pattern matching or Data.List.uncons instead. Consider refactoring to use Data.List.NonEmpty." | 15 | r = flip mod 12 $ (fst . head . filter f) roma + a | ^^^^ [2 of 2] Linking a.out
ソースコード
roma :: [(Int, String)] roma = zip [1..12] ["I","II","III","IIII","V","VI","VII","VIII","IX","X","XI","XII"] main = do [r, a] <- words <$> getLine let int_a = read a putStrLn $ solve r int_a solve :: String -> Int -> String solve s a | r <= 0 = snd $ roma !! (12 - r - 1) | otherwise = snd $ roma !! (r - 1) where r = flip mod 12 $ (fst . head . filter f) roma + a f x = s == snd x