結果
問題 |
No.406 鴨等間隔の法則
|
ユーザー |
|
提出日時 | 2018-01-14 20:34:01 |
言語 | Haskell (9.10.1) |
結果 |
AC
|
実行時間 | 162 ms / 2,000 ms |
コード長 | 555 bytes |
コンパイル時間 | 3,311 ms |
コンパイル使用メモリ | 180,912 KB |
実行使用メモリ | 21,760 KB |
最終ジャッジ日時 | 2024-07-07 12:19:06 |
合計ジャッジ時間 | 5,410 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 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:14:50: warning: [GHC-63394] [-Wx-partial] In the use of ‘tail’ (imported from Data.List, 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." | 14 | solve xs = let sxs = sort xs in f $ zipWith (-) (tail sxs) sxs | ^^^^ [2 of 2] Linking a.out
ソースコード
import Control.Applicative ((<$>)) import Data.List import Data.Char (isSpace) import Data.ByteString.Char8 (ByteString) import qualified Data.ByteString.Char8 as B main :: IO () main = do B.getLine solve <$> readIntList >>= putStrLn solve :: [Int] -> String solve xs = let sxs = sort xs in f $ zipWith (-) (tail sxs) sxs where f (y:ys) = if (y > 0) && all (== y) ys then "YES" else "NO" readIntList :: IO [Int] readIntList = unfoldr f <$> B.getLine where f s = do (n, s') <- B.readInt s return (n, B.dropWhile isSpace s')