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  (9.10.1)  | 
                    
| 結果 | 
                             
                                TLE
                                 
                             
                            
                         | 
                    
| 実行時間 | - | 
| コード長 | 258 bytes | 
| コンパイル時間 | 4,075 ms | 
| コンパイル使用メモリ | 172,800 KB | 
| 実行使用メモリ | 12,928 KB | 
| 最終ジャッジ日時 | 2024-09-14 08:50:18 | 
| 合計ジャッジ時間 | 16,743 ms | 
| 
                            ジャッジサーバーID (参考情報)  | 
                        judge3 / judge2 | 
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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-9.8.2/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.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 |         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.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."
   |
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