結果

問題 No.406 鴨等間隔の法則
コンテスト
ユーザー Naoki_M_
提出日時 2016-08-13 13:26:34
言語 Haskell
(9.10.1)
結果
AC  
実行時間 177 ms / 2,000 ms
コード長 321 bytes
コンパイル時間 3,200 ms
コンパイル使用メモリ 180,176 KB
実行使用メモリ 27,392 KB
最終ジャッジ日時 2024-07-07 11:37:09
合計ジャッジ時間 7,339 ms
ジャッジサーバーID
（参考情報） 		judge1 / judge3
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 3
other AC * 29
権限があれば一括ダウンロードができます
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:5:92: 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."
  |
5 | main = BS.getContents >>= putStrLn . solve [] . sort . map (fst . fromJust . BS.readInt) . tail . BS.words
  |                                                                                            ^^^^

Main.hs:7:19: warning: [GHC-63394] [-Wx-partial]
    In the use of ‘head’
    (imported from Data.List, 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 | solve ls [_] = if head ls /= 0 && all (== head ls) (tail ls) then "YES" else "NO"
  |                   ^^^^

Main.hs:7:43: warning: [GHC-63394] [-Wx-partial]
    In the use of ‘head’
    (imported from Data.List, 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 | solve ls [_] = if head ls /= 0 && all (== head ls) (tail ls) then "YES" else "NO"
  |                                           ^^^^

Main.hs:7:53: 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."
  |
7 | solve ls [_] = if head ls /= 0 && all (== head ls) (tail ls) then "YES" else "NO"
  |

ソースコード

diff # 

import qualified Data.ByteString.Char8 as BS
import Data.List
import Data.Maybe

main = BS.getContents >>= putStrLn . solve [] . sort . map (fst . fromJust . BS.readInt) . tail . BS.words

solve ls [_] = if head ls /= 0 && all (== head ls) (tail ls) then "YES" else "NO"
solve ls (a0:a1:as) = solve ((a0 - a1):ls) (a1:as)
0