結果

問題 No.79 過小評価ダメ・ゼッタイ
コンテスト
ユーザー tottoripaper
提出日時 2014-12-02 16:55:41
言語 Haskell
(9.10.1)
結果
AC  
実行時間 256 ms / 5,000 ms
コード長 302 bytes
コンパイル時間 9,117 ms
コンパイル使用メモリ 174,592 KB
実行使用メモリ 23,168 KB
最終ジャッジ日時 2024-06-26 07:17:36
合計ジャッジ時間 11,939 ms
ジャッジサーバーID
（参考情報） 		judge1 / judge5
このコードへのチャレンジ
（要ログイン）
ファイルパターン 結果
sample AC * 3
other AC * 22
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:9:56: 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."
  |
9 |     cmp x y = (length y `compare` length x) `mappend` (head y `compare` head x)
  |                                                        ^^^^

Main.hs:9:73: 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."
  |
9 |     cmp x y = (length y `compare` length x) `mappend` (head y `compare` head x)
  |                                                                         ^^^^

Main.hs:10:9: 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."
   |
10 |     l = head . head . sortBy cmp . group . sort $ ls
   |         ^^^^

Main.hs:10:16: 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."
   |
10 |     l = head . head . sortBy cmp . group . sort $ ls
   |                ^^^^
[2 of 2] Linking a.out

ソースコード

diff # 

import Control.Applicative
import Data.List
import Data.Monoid

main = do
  _ <- getLine
  ls <- map read . words <$> getLine :: IO [Int]
  let
    cmp x y = (length y `compare` length x) `mappend` (head y `compare` head x)
    l = head . head . sortBy cmp . group . sort $ ls
   in print l
0