結果
問題 |
No.1133 キムワイプイーター
|
ユーザー |
|
提出日時 | 2020-09-11 09:49:45 |
言語 | Haskell (9.10.1) |
結果 |
WA
|
実行時間 | - |
コード長 | 1,236 bytes |
コンパイル時間 | 5,691 ms |
コンパイル使用メモリ | 171,776 KB |
実行使用メモリ | 215,680 KB |
最終ジャッジ日時 | 2024-12-25 10:24:32 |
合計ジャッジ時間 | 50,711 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | WA * 2 |
other | WA * 17 TLE * 14 |
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 ) [2 of 2] Linking a.out
ソースコード
import qualified Data.List as L main :: IO () main = do [n, _m] <- map read . words <$> getLine s <- getLine putStrLn $ solve n s solve :: Int -> [Char] -> String solve n = unlines . map (unwords . map showBool) . solve' n where showBool :: Bool -> String showBool b = if b then "0" else "1" solve' :: Int -> [Char] -> [[Bool]] solve' n cs = solve'' n cs [(0, n)] solve'' :: Int -> [Char] -> [(Int, Int)] -> [[Bool]] solve'' n [] ps = fromCoords n $ L.nub ps solve'' n (c:cs) ps@((x, y):_) = solve'' n cs ((x', y'):ps) where x' = case c of 'R' -> x + 1 'L' -> x - 1 _ -> x y' = case c of 'U' -> y - 1 'D' -> y + 1 _ -> y solve'' _ _ [] = [[]] -- unreachable fromCoords :: Int -> [(Int, Int)] -> [[Bool]] fromCoords n ps = fromCoords' ps $ replicate (n + 1) (replicate (n + 1) False) where fromCoords' :: [(Int, Int)] -> [[Bool]] -> [[Bool]] fromCoords' [] bs = bs fromCoords' ((x, y):qs) bs = fromCoords' qs $ update y (update x True (bs!!y)) bs where update :: Int -> a -> [a] -> [a] update i a as = take i as ++ [a] ++ drop (i + 1) as