結果

問題 No.79 過小評価ダメ・ゼッタイ
ユーザー 情報学生情報学生
提出日時 2019-08-20 10:29:34
言語 Haskell
(9.8.2)
結果
AC  
実行時間 242 ms / 5,000 ms
コード長 265 bytes
コンパイル時間 2,240 ms
コンパイル使用メモリ 175,488 KB
実行使用メモリ 18,176 KB
最終ジャッジ日時 2024-04-16 02:00:09
合計ジャッジ時間 4,892 ms
ジャッジサーバーID
(参考情報)
judge2 / judge4
このコードへのチャレンジ
(要ログイン)

テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 12 ms
8,320 KB
testcase_01 AC 242 ms
18,048 KB
testcase_02 AC 2 ms
5,376 KB
testcase_03 AC 1 ms
5,376 KB
testcase_04 AC 1 ms
5,376 KB
testcase_05 AC 122 ms
15,488 KB
testcase_06 AC 1 ms
5,376 KB
testcase_07 AC 1 ms
5,376 KB
testcase_08 AC 1 ms
5,376 KB
testcase_09 AC 1 ms
5,376 KB
testcase_10 AC 1 ms
5,376 KB
testcase_11 AC 1 ms
5,376 KB
testcase_12 AC 2 ms
5,376 KB
testcase_13 AC 2 ms
5,376 KB
testcase_14 AC 129 ms
13,952 KB
testcase_15 AC 48 ms
11,136 KB
testcase_16 AC 176 ms
17,280 KB
testcase_17 AC 43 ms
9,984 KB
testcase_18 AC 166 ms
17,152 KB
testcase_19 AC 118 ms
14,080 KB
testcase_20 AC 236 ms
18,048 KB
testcase_21 AC 8 ms
8,064 KB
testcase_22 AC 68 ms
12,032 KB
testcase_23 AC 216 ms
18,048 KB
testcase_24 AC 225 ms
18,176 KB
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:4:89: 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."
  |
4 | main = interact $ show . solve . group . reverse . sort . map (read :: String -> Int) . tail . words
  |                                                                                         ^^^^

Main.hs:7:13: 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 xss = head . head $ filter (\xs -> length xs == x) xss
  |             ^^^^

Main.hs:7:20: 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 xss = head . head $ filter (\xs -> length xs == x) xss
  |                    ^^^^
[2 of 2] Linking a.out

ソースコード

diff #

import Data.List

main :: IO ()
main = interact $ show . solve . group . reverse . sort . map (read :: String -> Int) . tail . words

solve :: [[Int]] -> Int
solve xss = head . head $ filter (\xs -> length xs == x) xss
    where
        x = maximum $ map length xss
0