結果
問題 |
No.5 数字のブロック
|
ユーザー |
|
提出日時 | 2023-05-15 19:29:14 |
言語 | Haskell (9.10.1) |
結果 |
AC
|
実行時間 | 946 ms / 5,000 ms |
コード長 | 698 bytes |
コンパイル時間 | 5,083 ms |
コンパイル使用メモリ | 171,776 KB |
実行使用メモリ | 14,976 KB |
最終ジャッジ日時 | 2024-12-14 01:38:33 |
合計ジャッジ時間 | 13,351 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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ファイルパターン | 結果 |
---|---|
other | AC * 34 |
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:24:22: 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." | 24 | l :: Int <- read . head <$> prompt | ^^^^ Main.hs:25:22: warning: [GHC-63394] [-Wx-partial] In the use of ‘head’ (imported from Prelude, but defined in GHC.List): "This is a partial function, it throws an error on empty lists. Use pattern matching or Data.List.uncons instead. Consider refactoring to use Data.List.NonEmpty." | 25 | n :: Int <- read . head <$> prompt | ^^^^ [2 of 2] Linking a.out
ソースコード
import Data.List (sort) split :: String -> [String] split = go ("", []) where go :: (String, [String]) -> String -> [String] go (a, acc) "" = acc <> [a] go (a, acc) (' ' : xs) = go ("", acc <> [a]) xs go (a, acc) (x : xs) = go (a <> [x], acc) xs prompt :: IO [String] prompt = do split <$> getLine solve :: Int -> Int -> [Int] -> Int solve l n ws = go 0 l (sort ws) where go :: Int -> Int -> [Int] -> Int go c acc [] = c go c 0 _ = c go c acc (x : xs) = if acc < x then c else go (c + 1) (acc - x) xs main :: IO () main = do l :: Int <- read . head <$> prompt n :: Int <- read . head <$> prompt ws :: [Int] <- map read <$> prompt print $ solve l n ws