結果
問題 |
No.280 歯車の問題(1)
|
ユーザー |
|
提出日時 | 2015-09-29 19:43:48 |
言語 | Haskell (9.10.1) |
結果 |
AC
|
実行時間 | 2 ms / 1,000 ms |
コード長 | 460 bytes |
コンパイル時間 | 2,343 ms |
コンパイル使用メモリ | 174,464 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-07-19 18:02:25 |
合計ジャッジ時間 | 5,096 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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ファイルパターン | 結果 |
---|---|
other | AC * 31 |
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:5:22: 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." | 5 | solve xs = last xs % head xs | ^^^^ [2 of 2] Linking a.out
ソースコード
module Main where import Data.Ratio solve :: [Integer] -> Rational solve xs = last xs % head xs formatRatio :: String -> String formatRatio [] = [] formatRatio ('%':xs) = '/':formatRatio xs formatRatio (x:xs) = x:formatRatio xs main :: IO() main = do n <- fmap read getLine :: IO (Int) zs <- fmap words getLine :: IO [String] let zs' = fmap read zs :: [Integer] let res = show $ solve zs' putStrLn $ formatRatio res