結果
| 問題 | 
                            No.432 占い(Easy)
                             | 
                    
| コンテスト | |
| ユーザー | 
                             Ysmr_Ry
                         | 
                    
| 提出日時 | 2016-12-17 03:21:12 | 
| 言語 | Haskell  (9.10.1)  | 
                    
| 結果 | 
                             
                                AC
                                 
                             
                            
                         | 
                    
| 実行時間 | 96 ms / 2,000 ms | 
| コード長 | 366 bytes | 
| コンパイル時間 | 8,704 ms | 
| コンパイル使用メモリ | 173,312 KB | 
| 実行使用メモリ | 28,672 KB | 
| 最終ジャッジ日時 | 2024-11-30 22:34:45 | 
| 合計ジャッジ時間 | 3,547 ms | 
| 
                            ジャッジサーバーID (参考情報)  | 
                        judge3 / judge1 | 
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| ファイルパターン | 結果 | 
|---|---|
| sample | AC * 4 | 
| other | AC * 22 | 
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:9:13: 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."
  |
9 |     print $ head $ last $ takeWhile (not . null) $ iterate step (map digitToInt xs)
  |             ^^^^
Main.hs:12:27: 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."
   |
12 | step xs = zipWith add xs (tail xs)
   |                           ^^^^
[2 of 2] Linking a.out
            
            ソースコード
import Control.Monad
import Data.Char
main :: IO ()
main = do
  t <- readLn
  replicateM_ t $ do
    xs <- getLine
    print $ head $ last $ takeWhile (not . null) $ iterate step (map digitToInt xs)
step :: [Int] -> [Int]
step xs = zipWith add xs (tail xs)
  where
    add a b
      | s >= 10   = s`div`10+s`mod`10
      | otherwise = s
      where
        s = a+b
            
            
            
        
            
Ysmr_Ry