結果
| 問題 | No.204 ゴールデン・ウィーク(2) |
| コンテスト | |
| ユーザー |
aimy
|
| 提出日時 | 2018-02-03 10:54:57 |
| 言語 | Haskell (9.10.1) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 735 bytes |
| コンパイル時間 | 1,461 ms |
| コンパイル使用メモリ | 173,440 KB |
| 実行使用メモリ | 6,948 KB |
| 最終ジャッジ日時 | 2024-06-11 15:19:19 |
| 合計ジャッジ時間 | 2,357 ms |
|
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 21 WA * 25 |
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:8:28: 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 | ans = case (length gs, head cs) of
| ^^^^
Main.hs:12:27: 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."
|
12 | (2, 'x') -> min 14 (head gs + d)
| ^^^^
[2 of 2] Linking a.out
ソースコード
import Data.List
main = do
d <- readLn
cs <- concat . words <$> getContents
let
gs = (map length . group) cs
ans = case (length gs, head cs) of
(1, 'o') -> 14
(1, 'x') -> d
(2, 'o') -> min 14 (last gs + d)
(2, 'x') -> min 14 (head gs + d)
(3, 'o') -> let [x,y,z] = gs in if d>=y then x+y+z else max x z + d
(3, 'x') -> let [x,y,z] = gs in max (y + min x d) (y + min z d)
(_, 'o') -> maximum (iFilter even (zipWith3 (\x y z -> if d>=y then x+y+z else max x z + d) gs (drop 1 gs) (drop 2 gs)))
(_, 'x') -> maximum (iFilter odd (zipWith3 (\x y z -> if d>=y then x+y+z else max x z + d) gs (drop 1 gs) (drop 2 gs)))
print ans
iFilter p xs = [x | (i,x) <- zip [0..] xs, p i]
aimy