結果
| 問題 | No.345 最小チワワ問題 |
| コンテスト | |
| ユーザー |
Hirotaka Ohkubo
|
| 提出日時 | 2016-07-27 00:54:06 |
| 言語 | Haskell (9.14.1) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 310 bytes |
| 記録 | |
| コンパイル時間 | 7,785 ms |
| コンパイル使用メモリ | 194,688 KB |
| 実行使用メモリ | 7,972 KB |
| 最終ジャッジ日時 | 2026-05-06 21:56:30 |
| 合計ジャッジ時間 | 9,247 ms |
|
ジャッジサーバーID (参考情報) |
judge1_0 / judge2_1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 15 WA * 14 |
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:7:40: warning: [GHC-63394] [-Wx-partial]
In the use of ‘head’
(imported from Data.List, 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"."
|
7 | compute cs = if null lens then -1 else head lens where
| ^^^^
Main.hs:13:37: warning: [GHC-63394] [-Wx-partial]
In the use of ‘tail’
(imported from Data.List, 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 | , let (cs,ds) = break ('w' ==) $ tail bs
| ^^^^
[2 of 2] Linking a.out
ソースコード
import Data.List
main = do
cs <- getLine
print $ compute cs
compute cs = if null lens then -1 else head lens where
lens =
[ length as + length cs + 3
| ('c':xs) <- tails cs
, let (as,bs) = break ('w' ==) xs
, not $ null bs
, let (cs,ds) = break ('w' ==) $ tail bs
, not $ null ds
]
Hirotaka Ohkubo