結果
| 問題 | No.45 回転寿司 |
| ユーザー |
くれちー
|
| 提出日時 | 2017-05-05 22:09:00 |
| 言語 | Haskell (9.14.1) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 258 bytes |
| 記録 | |
| コンパイル時間 | 1,396 ms |
| コンパイル使用メモリ | 198,400 KB |
| 実行使用メモリ | 17,700 KB |
| 最終ジャッジ日時 | 2026-04-04 11:38:26 |
| 合計ジャッジ時間 | 14,506 ms |
|
ジャッジサーバーID (参考情報) |
judge5_0 / judge3_0 |
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| ファイルパターン | 結果 |
|---|---|
| sample | -- * 4 |
| other | TLE * 1 -- * 29 |
コンパイルメッセージ
Loaded package environment from /home/judge/.ghc/x86_64-linux-9.14.1/environments/default
[1 of 2] Compiling Main ( Main.hs, Main.o )
Main.hs:12:14: warning: [GHC-63394] [-Wx-partial]
In the use of ‘head’
(imported from Prelude, but defined in GHC.Internal.List):
"This is a partial function, it throws an error on empty lists. Use pattern matching, 'Data.List.uncons' or 'Data.Maybe.listToMaybe' instead. Consider refactoring to use "Data.List.NonEmpty"."
|
12 | t1 = head vs + solve (drop 2 vs)
| ^^^^
Main.hs:13:21: warning: [GHC-63394] [-Wx-partial]
In the use of ‘tail’
(imported from Prelude, but defined in GHC.Internal.List):
"This is a partial function, it throws an error on empty lists. Replace it with 'drop' 1, or use pattern matching or 'GHC.Internal.Data.List.uncons' instead. Consider refactoring to use "Data.List.NonEmpty"."
|
13 | t2 = solve (tail vs)
| ^^^^
[2 of 2] Linking a.out
ソースコード
main :: IO ()
main = do
getLine
vs <- map read . words <$> getLine
print $ solve vs
solve :: Integral a => [a] -> a
solve [] = 0
solve [v] = v
solve vs = max t1 t2
where
t1 = head vs + solve (drop 2 vs)
t2 = solve (tail vs)
くれちー