結果

問題 No.24 数当てゲーム
ユーザー refle
提出日時 2018-12-31 21:06:36
言語 Haskell
(9.10.1)
結果
AC  
実行時間 2 ms / 5,000 ms
コード長 299 bytes
コンパイル時間 7,019 ms
コンパイル使用メモリ 173,568 KB
実行使用メモリ 5,248 KB
最終ジャッジ日時 2024-10-13 05:55:30
合計ジャッジ時間 7,683 ms
ジャッジサーバーID
(参考情報)
judge2 / judge5
このコードへのチャレンジ
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ファイルパターン 結果
other AC * 10
権限があれば一括ダウンロードができます
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:6:46: warning: [GHC-63394] [-Wx-partial]
    In the use of ‘head’
    (imported from Data.List, 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."
  |
6 | parse ds = let (ns, p) = splitAt 4 ds in (if head p=="NO" then ([0..9]\\) else id) $ map read ns
  |                                              ^^^^

Main.hs:8:67: warning: [GHC-63394] [-Wx-partial]
    In the use of ‘head’
    (imported from Data.List, 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."
  |
8 | main = readLn >>= flip replicateM (words <$> getLine) >>= print . head . foldl intersect [0..9] . map parse
  |                                                                   ^^^^
[2 of 2] Linking a.out

ソースコード

diff #
プレゼンテーションモードにする

import Control.Applicative
import Control.Monad
import Data.List
parse :: [String] -> [Int]
parse ds = let (ns, p) = splitAt 4 ds in (if head p=="NO" then ([0..9]\\) else id) $ map read ns
main = readLn >>= flip replicateM (words <$> getLine) >>= print . head . foldl intersect [0..9] . map parse
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