結果
問題 |
No.627 ランダムウォークの軌跡
|
ユーザー |
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提出日時 | 2018-01-05 22:19:15 |
言語 | Haskell (9.10.1) |
結果 |
WA
|
実行時間 | - |
コード長 | 316 bytes |
コンパイル時間 | 5,888 ms |
コンパイル使用メモリ | 173,696 KB |
実行使用メモリ | 5,248 KB |
最終ジャッジ日時 | 2024-12-23 06:45:34 |
合計ジャッジ時間 | 7,098 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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ファイルパターン | 結果 |
---|---|
other | AC * 31 WA * 2 |
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:4:24: 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." | 4 | diff xs = zipWith (-) (tail xs) (init xs) | ^^^^ [2 of 2] Linking a.out
ソースコード
import Control.Monad (replicateM) diff :: Num a => [a] -> [a] diff xs = zipWith (-) (tail xs) (init xs) judge :: Integral a => [a] -> Bool judge = all (== 1) . fmap abs . diff main :: IO () main = do t <- readLn :: IO Int xs <- replicateM t readLn :: IO [Int] putStrLn $ if judge xs then "T" else "F"