結果
問題 | No.586 ダブルブッキング |
ユーザー |
|
提出日時 | 2019-03-12 21:35:00 |
言語 | Haskell (9.10.1) |
結果 |
AC
|
実行時間 | 2 ms / 2,000 ms |
コード長 | 391 bytes |
コンパイル時間 | 5,286 ms |
コンパイル使用メモリ | 172,416 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-06-23 15:53:44 |
合計ジャッジ時間 | 5,797 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 5 |
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:17:58: warning: [GHC-63394] [-Wx-partial] In the use of ‘head’ (imported from Prelude, 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." | 17 | print $ foldr (\x y -> (p1 + p2) * x + y) 0 $ solve (head rs) 0 (tail rs) | ^^^^ Main.hs:17:70: warning: [GHC-63394] [-Wx-partial] In the use of ‘tail’ (imported from Prelude, 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." | 17 | print $ foldr (\x y -> (p1 + p2) * x + y) 0 $ solve (head rs) 0 (tail rs) | ^^^^ [2 of 2] Linking a.out
ソースコード
import Control.Monad (replicateM) import Data.List (sort) rInt :: String -> Int rInt = read solve _ n [] = [n] solve k n (r:rs) | k == r = solve k (n + 1) rs | otherwise = n : solve r 0 rs main = do p1 <- readLn p2 <- readLn n <- readLn rs <- sort . map rInt <$> replicateM n getLine print $ foldr (\x y -> (p1 + p2) * x + y) 0 $ solve (head rs) 0 (tail rs)