結果

問題 No.2224 UFO Game
ユーザー ducktail
提出日時 2023-07-23 22:06:01
言語 Haskell
(9.10.1)
結果
AC  
実行時間 2 ms / 2,000 ms
コード長 179 bytes
コンパイル時間 7,910 ms
コンパイル使用メモリ 171,264 KB
実行使用メモリ 6,944 KB
最終ジャッジ日時 2024-09-25 01:32:09
合計ジャッジ時間 7,845 ms
ジャッジサーバーID
(参考情報)
judge2 / judge1
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 3
other AC * 11
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:8:5: 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."
  |
8 |   | head s == 'x' = 2 ^ 32 - ((read . tail) s)
  |     ^^^^

Main.hs:8:39: warning: [GHC-63394] [-Wx-partial]
    In the use of ‘tail’
    (imported from Prelude, but defined in GHC.List):
    "This is a partial function, it throws an error on empty lists. Replace it with drop 1, or use pattern matching or Data.List.uncons instead. Consider refactoring to use Data.List.NonEmpty."
  |
8 |   | head s == 'x' = 2 ^ 32 - ((read . tail) s)
  |                                       ^^^^
[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
main :: IO ()
main = solve <$> getLine >>= print
solve :: String -> Int
solve s
| head s == 'x' = 2 ^ 32 - ((read . tail) s)
| otherwise = read s
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