結果

問題 No.232 めぐるはめぐる (2)
ユーザー ducktail
提出日時 2018-09-16 17:26:14
言語 Haskell
(9.10.1)
結果
AC  
実行時間 28 ms / 1,000 ms
コード長 1,064 bytes
コンパイル時間 5,343 ms
コンパイル使用メモリ 175,684 KB
実行使用メモリ 7,936 KB
最終ジャッジ日時 2024-09-14 12:45:03
合計ジャッジ時間 6,662 ms
ジャッジサーバーID
（参考情報） 		judge5 / judge1
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 3
other AC * 22
権限があれば一括ダウンロードができます
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

diff # 

import Control.Applicative

main :: IO ()
main = solve <$> f >>= mapM_ putStrLn
  where
    f = map read <$> words <$> getLine

solve :: [Int] -> [String]
solve [t, a, b]
  | mp < 0 = ["NO"]
  | a == 0 && b == 0 && t == 1 = ["NO"]
  | a == 0 && b == 0 && even mp = ["YES"] ++ (take mp $ cycle [">", "<"])
  | a == 0 && b == 0 = ["YES", ">", "^", "v<"] ++ (take (mp - 3) $ cycle [">", "<"])
  | b == 0 && even mp = ["YES"] ++ (take mp $ cycle [">", "<"]) ++ replicate a "^"
  | b == 0 = ["YES", "^>", "<"] ++ (take (mp - 1) $ cycle [">", "<"]) ++ replicate (a - 1) "^"
  | a == 0 && even mp = ["YES"] ++ (take mp $ cycle [">", "<"]) ++ replicate b ">"
  | a == 0 = ["YES", "^>", "v"] ++ (take (mp - 1) $ cycle [">", "<"]) ++ replicate (b - 1) ">"
  | otherwise = ["YES"] ++
                take (mp `div` 2 * 2) (cycle [">", "<"]) ++
                (if even mp then ["^>"] else [">","^"]) ++
                replicate (min b a - 1) "^>" ++
                (if b > a then replicate (b - a) ">" else replicate (a - b) "^")
  where
    mp = t - min a b - abs (a - b)
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