結果
| 問題 |
No.358 も~っと!門松列
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2017-04-24 18:50:49 |
| 言語 | Haskell (9.10.1) |
| 結果 |
AC
|
| 実行時間 | 2 ms / 1,000 ms |
| コード長 | 879 bytes |
| コンパイル時間 | 1,613 ms |
| コンパイル使用メモリ | 171,896 KB |
| 実行使用メモリ | 6,944 KB |
| 最終ジャッジ日時 | 2024-09-13 12:03:54 |
| 合計ジャッジ時間 | 2,535 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 23 |
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:3:28: 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."
|
3 | anyKadomatsu as = any (== (head as)) (tail as) || any (== (last as)) (init as)
| ^^^^
Main.hs:3:39: warning: [GHC-63394] [-Wx-partial]
In the use of ‘tail’
(imported from Data.List, 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."
|
3 | anyKadomatsu as = any (== (head as)) (tail as) || any (== (last as)) (init as)
| ^^^^
[2 of 2] Linking a.out
ソースコード
import Data.List
anyKadomatsu as = any (== (head as)) (tail as) || any (== (last as)) (init as)
isKadomatsu (x:y:z:zs) = ( (x > y) && (z > y) ) || ( (x < y) && (z < y) )
solve as
| anyKadomatsu as = 0 -- おなじ長さの竹があるので門松でない
| isKadomatsu as = -1 -- すでに門松なので、無限門松
| otherwise = mottoKadomatsu ((last . sort) as) as -- 有限門松
where
mottoKadomatsu 0 _ = 0
mottoKadomatsu p as = x + mottoKadomatsu (p - 1) as
where
bs = map (`mod` p) as
x | not (anyKadomatsu bs) && isKadomatsu bs = 1
| otherwise = 0
answer a
| a == -1 = "INF"
| otherwise = show a
main = do
as <- map (read :: String -> Int) . words <$> getLine
putStrLn $ answer $ solve as