結果
| 問題 |
No.143 豆
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2023-05-15 18:44:28 |
| 言語 | Haskell (9.10.1) |
| 結果 |
AC
|
| 実行時間 | 3 ms / 1,000 ms |
| コード長 | 679 bytes |
| コンパイル時間 | 10,565 ms |
| コンパイル使用メモリ | 171,776 KB |
| 実行使用メモリ | 6,820 KB |
| 最終ジャッジ日時 | 2024-11-30 23:22:20 |
| 合計ジャッジ時間 | 11,435 ms |
|
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| other | AC * 17 |
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:22:29: 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."
|
22 | let [k, n, f] = map read [head input1, input1 !! 1, input1 !! 2]
| ^^^^
[2 of 2] Linking a.out
ソースコード
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] -> Int
solve k n f vs = let totalAge = sum vs
totalBeans = k * n
in if totalBeans < totalAge then -1 else totalBeans - totalAge
main :: IO ()
main = do
input1 <- prompt
input2 <- prompt
let [k, n, f] = map read [head input1, input1 !! 1, input1 !! 2]
vs = map read input2
print $ solve k n f vs