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 torus711
提出日時 2019-06-22 14:22:25
言語 Haskell
(9.10.1)
結果
AC  
実行時間 153 ms / 5,000 ms
コード長 880 bytes
コンパイル時間 8,700 ms
コンパイル使用メモリ 180,300 KB
実行使用メモリ 17,792 KB
最終ジャッジ日時 2024-12-26 08:55:24
合計ジャッジ時間 11,231 ms
ジャッジサーバーID
（参考情報） 		judge2 / judge5
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 * 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:35:1: warning: [GHC-94817] [-Wtabs]
    Tab character found here, and in 7 further locations.
    Suggested fix: Please use spaces instead.
   |
35 |         getLine
   | ^^^^^^^^

Main.hs:40:17: 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."
   |
40 |         print $ head $ head $ filter ( ( == maxLength ) . length ) histogram
   |                 ^^^^

Main.hs:40:24: 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."
   |
40 |         print $ head $ head $ filter ( ( == maxLength ) . length ) histogram
   |                        ^^^^
[2 of 2] Linking a.out

ソースコード

diff # 

{-# LANGUAGE BangPatterns #-}
{-# LANGUAGE BinaryLiterals #-}
{-# LANGUAGE MultiWayIf #-}
{-# LANGUAGE NumDecimals #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE TupleSections #-}

import Control.Applicative
import Control.Arrow
import Control.Monad
import Control.Monad.ST

import Data.Char
import Data.List
import Data.Maybe

import qualified Data.ByteString.Char8 as B

import Data.Array.ST.Safe
import Data.STRef

import Debug.Trace
import Text.Printf

import GHC.Exts

readInt = readLn :: IO Int
readInts = map ( fst . fromJust . B.readInt ) . B.words <$> B.getLine
readNInts = readInt >>= flip replicateM readInt

which a b f = if f then a else b
mp [ a, b ] = ( a, b )

main = do
	getLine
	ls <- reverse . sort <$> readInts
	let
		histogram = group ls
		maxLength = maximum $ map length histogram
	print $ head $ head $ filter ( ( == maxLength ) . length ) histogram
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