結果

問題 No.204 ゴールデン・ウィーク(2)
ユーザー aimyaimy
提出日時 2017-04-30 11:05:21
言語 Haskell
(9.8.2)
結果
WA  
実行時間 -
コード長 767 bytes
コンパイル時間 2,010 ms
コンパイル使用メモリ 172,928 KB
実行使用メモリ 6,944 KB
最終ジャッジ日時 2024-09-13 23:30:34
合計ジャッジ時間 3,325 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
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 WA -
testcase_01 AC 2 ms
6,940 KB
testcase_02 AC 2 ms
6,944 KB
testcase_03 AC 2 ms
6,940 KB
testcase_04 AC 2 ms
6,940 KB
testcase_05 AC 2 ms
6,940 KB
testcase_06 AC 1 ms
6,940 KB
testcase_07 AC 2 ms
6,944 KB
testcase_08 AC 2 ms
6,940 KB
testcase_09 AC 2 ms
6,940 KB
testcase_10 AC 1 ms
6,944 KB
testcase_11 AC 2 ms
6,940 KB
testcase_12 AC 1 ms
6,944 KB
testcase_13 AC 2 ms
6,940 KB
testcase_14 AC 1 ms
6,944 KB
testcase_15 AC 2 ms
6,940 KB
testcase_16 AC 2 ms
6,940 KB
testcase_17 AC 1 ms
6,944 KB
testcase_18 AC 2 ms
6,944 KB
testcase_19 AC 1 ms
6,944 KB
testcase_20 AC 2 ms
6,940 KB
testcase_21 AC 2 ms
6,940 KB
testcase_22 AC 2 ms
6,944 KB
testcase_23 AC 1 ms
6,944 KB
testcase_24 AC 2 ms
6,940 KB
testcase_25 AC 2 ms
6,944 KB
testcase_26 AC 1 ms
6,940 KB
testcase_27 AC 2 ms
6,940 KB
testcase_28 AC 2 ms
6,944 KB
testcase_29 AC 2 ms
6,940 KB
testcase_30 AC 1 ms
6,944 KB
testcase_31 AC 2 ms
6,940 KB
testcase_32 AC 2 ms
6,940 KB
testcase_33 AC 2 ms
6,940 KB
testcase_34 AC 2 ms
6,940 KB
testcase_35 AC 2 ms
6,944 KB
testcase_36 RE -
testcase_37 AC 1 ms
6,940 KB
testcase_38 AC 1 ms
6,940 KB
testcase_39 AC 1 ms
6,940 KB
testcase_40 AC 2 ms
6,944 KB
testcase_41 AC 1 ms
6,940 KB
testcase_42 AC 2 ms
6,944 KB
testcase_43 AC 1 ms
6,940 KB
testcase_44 AC 2 ms
6,940 KB
testcase_45 AC 2 ms
6,940 KB
testcase_46 AC 1 ms
6,940 KB
testcase_47 AC 2 ms
6,940 KB
testcase_48 AC 2 ms
6,944 KB
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:13:41: 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."
   |
13 |   chead = maximum $ map length $ filter head $ group $ replicate d True ++ dropWhile not cs
   |                                         ^^^^

Main.hs:14:41: 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."
   |
14 |   clast = maximum $ map length $ filter head $ group $ (reverse . dropWhile not . reverse) cs ++ replicate d True
   |                                         ^^^^

Main.hs:21:50: 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."
   |
21 |    return $ maximum $ (0:) $ map length $ filter head $ group cs'
   |                                                  ^^^^
[2 of 2] Linking a.out

ソースコード

diff # 

import Data.Char
import Data.List
import Control.Monad

main = do
 d <- readLn
 cs <- map (\c -> if c=='o' then True else False) . filter isAlpha <$> getContents
 print (gw2 d cs)

gw2 :: Int -> [Bool] -> Int
gw2 d cs = maximum [chead, clast, maximum (0:cinter)]
 where
  chead = maximum $ map length $ filter head $ group $ replicate d True ++ dropWhile not cs
  clast = maximum $ map length $ filter head $ group $ (reverse . dropWhile not . reverse) cs ++ replicate d True
  cinter = do
   i <- [0 .. 14-d]
   m <- [1..d]
   let pat = replicate i False ++ replicate m True ++ replicate (14-(m+i)) False
   let cs' = zipWith (||) pat cs
   guard (length (filter id cs') == length (filter id cs) + m)
   return $ maximum $ (0:) $ map length $ filter head $ group cs'
0