結果
問題 | No.52 よくある文字列の問題 |
ユーザー | はむ吉🐹 |
提出日時 | 2015-10-27 13:33:33 |
言語 | Haskell (9.8.2) |
結果 |
AC
|
実行時間 | 5 ms / 5,000 ms |
コード長 | 600 bytes |
コンパイル時間 | 2,642 ms |
コンパイル使用メモリ | 172,544 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-09-22 05:23:51 |
合計ジャッジ時間 | 2,557 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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 | AC | 1 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | AC | 3 ms
6,940 KB |
testcase_03 | AC | 1 ms
6,940 KB |
testcase_04 | AC | 5 ms
6,940 KB |
testcase_05 | AC | 4 ms
6,944 KB |
testcase_06 | AC | 5 ms
6,940 KB |
testcase_07 | AC | 2 ms
6,940 KB |
testcase_08 | AC | 1 ms
6,944 KB |
testcase_09 | AC | 1 ms
6,940 KB |
testcase_10 | AC | 2 ms
6,944 KB |
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:7:27: 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." | 7 | (sresh, snewh) = (tail sres, snew ++ [head sres]) | ^^^^ Main.hs:7:47: 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." | 7 | (sresh, snewh) = (tail sres, snew ++ [head sres]) | ^^^^ [2 of 2] Linking a.out
ソースコード
import Data.List (nub) takeChar :: (String, String) -> [(String, String)] takeChar ([], snew) = [([], snew)] takeChar (sres, snew) = [(sresh, snewh), (sresl, snewl)] where (sresh, snewh) = (tail sres, snew ++ [head sres]) (sresl, snewl) = (init sres, snew ++ [last sres]) mapTakeChar :: [(String, String)] -> [(String, String)] mapTakeChar ps = concat $ map takeChar ps countPossibleStrings :: String -> Int countPossibleStrings s = length $ nub $ map snd $ foldr (const mapTakeChar) [(s, [])] [1 .. length s] main :: IO () main = print . countPossibleStrings =<< getLine