結果
| 問題 |
No.609 Noelちゃんと星々
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2017-12-12 15:52:43 |
| 言語 | Haskell (9.10.1) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 370 bytes |
| コンパイル時間 | 11,777 ms |
| コンパイル使用メモリ | 173,768 KB |
| 実行使用メモリ | 58,368 KB |
| 最終ジャッジ日時 | 2024-12-14 05:04:27 |
| 合計ジャッジ時間 | 14,581 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| other | WA * 25 |
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:4:39: 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."
|
4 | | otherwise = check (acm + (abs ((head xs) - v))) v (tail xs)
| ^^^^
Main.hs:4:58: 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."
|
4 | | otherwise = check (acm + (abs ((head xs) - v))) v (tail xs)
| ^^^^
[2 of 2] Linking a.out
ソースコード
check :: Integer -> Integer -> [Integer] -> Integer
check acm v xs
| null xs = acm
| otherwise = check (acm + (abs ((head xs) - v))) v (tail xs)
main :: IO ()
main = do
n <- readLn
xs <- fmap (map read . words) getLine :: IO [Integer]
let avg = (sum xs) `div` n
print $ min (min (check 0 (avg - 1) xs) (check 0 avg xs)) (check 0 (avg + 1) xs)