結果

問題 No.78 クジ付きアイスバー
ユーザー ducktailducktail
提出日時 2018-09-03 21:01:47
言語 Haskell
(9.8.2)
結果
AC  
実行時間 2 ms / 5,000 ms
コード長 708 bytes
コンパイル時間 9,910 ms
コンパイル使用メモリ 171,392 KB
実行使用メモリ 6,948 KB
最終ジャッジ日時 2024-04-17 15:26:11
合計ジャッジ時間 3,299 ms
ジャッジサーバーID
（参考情報） 		judge2 / judge4
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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 1 ms
6,816 KB
testcase_01 AC 2 ms
6,944 KB
testcase_02 AC 2 ms
6,940 KB
testcase_03 AC 1 ms
6,940 KB
testcase_04 AC 1 ms
6,944 KB
testcase_05 AC 1 ms
6,944 KB
testcase_06 AC 1 ms
6,940 KB
testcase_07 AC 1 ms
6,940 KB
testcase_08 AC 2 ms
6,944 KB
testcase_09 AC 1 ms
6,940 KB
testcase_10 AC 1 ms
6,944 KB
testcase_11 AC 2 ms
6,940 KB
testcase_12 AC 2 ms
6,940 KB
testcase_13 AC 2 ms
6,944 KB
testcase_14 AC 1 ms
6,940 KB
testcase_15 AC 2 ms
6,940 KB
testcase_16 AC 2 ms
6,944 KB
testcase_17 AC 2 ms
6,944 KB
testcase_18 AC 1 ms
6,940 KB
testcase_19 AC 2 ms
6,944 KB
testcase_20 AC 1 ms
6,940 KB
testcase_21 AC 1 ms
6,940 KB
testcase_22 AC 1 ms
6,940 KB
testcase_23 AC 1 ms
6,940 KB
testcase_24 AC 1 ms
6,944 KB
testcase_25 AC 1 ms
6,940 KB
testcase_26 AC 1 ms
6,940 KB
testcase_27 AC 1 ms
6,940 KB
testcase_28 AC 1 ms
6,944 KB
testcase_29 AC 2 ms
6,940 KB
testcase_30 AC 2 ms
6,940 KB
testcase_31 AC 1 ms
6,944 KB
testcase_32 AC 2 ms
6,944 KB
testcase_33 AC 1 ms
6,940 KB
testcase_34 AC 2 ms
6,948 KB
testcase_35 AC 2 ms
6,944 KB
testcase_36 AC 1 ms
6,944 KB
testcase_37 AC 1 ms
6,944 KB
testcase_38 AC 1 ms
6,940 KB
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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:25:33: 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."
   |
25 |       | cat == 0 = f (cib + 1) (head xs) (tail xs)
   |                                 ^^^^

Main.hs:25:43: 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."
   |
25 |       | cat == 0 = f (cib + 1) (head xs) (tail xs)
   |                                           ^^^^
[2 of 2] Linking a.out

ソースコード

diff # 

import Control.Applicative
import Data.List
import Data.Char (digitToInt)

main :: IO ()
main = solve <$> f <*> getLine >>= print
  where
    f = map read <$> words <$> getLine

solve :: [Int] -> String -> Int
solve [n, k] s
  | q == 0 = fst . ice 0 $ take r is
  | cb <= cat = cb
  | otherwise = cb + (q-1) * (cb - cat) + (fst . ice cat $ take r is)
  where
    is = map digitToInt s
    (q, r) = divMod k n
    (cb, cat) = ice 0 is

ice :: Int -> [Int] -> (Int, Int)
ice at ibs = f 0 at ibs
  where
    f cib cat [] = (cib, cat)
    f cib cat xs
      | cat == 0 = f (cib + 1) (head xs) (tail xs)
      | otherwise = let (as, bs) = splitAt cat xs
                    in f cib (cat - length as + sum as) bs
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