結果
| 問題 |
No.415 ぴょん
|
| ユーザー |
|
| 提出日時 | 2017-04-20 16:29:10 |
| 言語 | Haskell (9.10.1) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 718 bytes |
| コンパイル時間 | 2,250 ms |
| コンパイル使用メモリ | 170,496 KB |
| 実行使用メモリ | 620,572 KB |
| 最終ジャッジ日時 | 2024-07-19 21:04:41 |
| 合計ジャッジ時間 | 4,893 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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| ファイルパターン | 結果 |
|---|---|
| other | WA * 2 MLE * 1 OLE * 1 -- * 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:15:39: 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."
|
15 | hasira' | m == 0 = 0 : tail hasira
| ^^^^
Main.hs:23:13: 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."
|
23 | n = head nk
| ^^^^
[2 of 2] Linking a.out
ソースコード
--pyon
-- n : 足場の数
-- k : 飛ぶ幅
import Control.Monad
import Debug.Trace
pyon :: Int -> Int -> [Int] -> Int -> Int
pyon n k hasira cnt
| isEnd == True = 0
| otherwise = 1 + pyon n k hasira' m
where
m = (cnt + k) `mod` n
isEnd = (hasira !! m) == 0
hasira' | m == 0 = 0 : tail hasira
| m == n - 1 = (take (n - 1) hasira) ++ [0]
| otherwise = (take m hasira) ++ [0] ++ (drop (m+1) hasira)
main = do
nk <- map (read :: String -> Int) . words <$> getLine
let
hasira = [0] ++ take (n - 1) [1,1..]
n = head nk
k = last nk
print n
print k
print hasira
print $ pyon n k hasira 0