結果
| 問題 |
No.185 和風
|
| コンテスト | |
| ユーザー |
mazeppa1108
|
| 提出日時 | 2015-06-24 18:01:21 |
| 言語 | Haskell (9.10.1) |
| 結果 |
AC
|
| 実行時間 | 8 ms / 1,000 ms |
| コード長 | 390 bytes |
| コンパイル時間 | 1,269 ms |
| コンパイル使用メモリ | 173,440 KB |
| 実行使用メモリ | 8,448 KB |
| 最終ジャッジ日時 | 2024-07-07 17:29:22 |
| 合計ジャッジ時間 | 1,742 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 * 7 |
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:9:32: 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."
|
9 | print $ if and $ map (== (head c')) c'
| ^^^^
Main.hs:10:24: 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."
|
10 | then if head c' <= 0
| ^^^^
Main.hs:12:29: 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."
|
12 | else head c'
| ^^^^
[2 of 2] Linking a.out
ソースコード
import Data.List
import Control.Applicative
import Control.Monad
main = do
n <- readLn
c <- (map . map) (read :: String -> Int) . map words <$> replicateM n getLine
let c' = map (\x -> x !! 1 - x !! 0) c
print $ if and $ map (== (head c')) c'
then if head c' <= 0
then -1
else head c'
else -1
mazeppa1108