結果
問題 | No.3 ビットすごろく |
ユーザー | mtwtkman |
提出日時 | 2023-05-16 19:40:33 |
言語 | Haskell (9.8.2) |
結果 |
AC
|
実行時間 | 309 ms / 5,000 ms |
コード長 | 1,061 bytes |
コンパイル時間 | 5,258 ms |
コンパイル使用メモリ | 171,264 KB |
実行使用メモリ | 8,448 KB |
最終ジャッジ日時 | 2024-05-08 13:40:31 |
合計ジャッジ時間 | 7,295 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 1 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | AC | 1 ms
6,944 KB |
testcase_03 | AC | 27 ms
7,936 KB |
testcase_04 | AC | 6 ms
6,940 KB |
testcase_05 | AC | 94 ms
8,320 KB |
testcase_06 | AC | 31 ms
7,936 KB |
testcase_07 | AC | 14 ms
8,192 KB |
testcase_08 | AC | 64 ms
8,320 KB |
testcase_09 | AC | 151 ms
8,320 KB |
testcase_10 | AC | 208 ms
8,448 KB |
testcase_11 | AC | 128 ms
8,192 KB |
testcase_12 | AC | 91 ms
8,064 KB |
testcase_13 | AC | 21 ms
8,064 KB |
testcase_14 | AC | 196 ms
8,192 KB |
testcase_15 | AC | 290 ms
8,448 KB |
testcase_16 | AC | 255 ms
8,320 KB |
testcase_17 | AC | 288 ms
8,320 KB |
testcase_18 | AC | 17 ms
7,936 KB |
testcase_19 | AC | 302 ms
8,192 KB |
testcase_20 | AC | 4 ms
6,940 KB |
testcase_21 | AC | 1 ms
6,944 KB |
testcase_22 | AC | 206 ms
8,192 KB |
testcase_23 | AC | 305 ms
8,192 KB |
testcase_24 | AC | 309 ms
8,192 KB |
testcase_25 | AC | 299 ms
8,448 KB |
testcase_26 | AC | 2 ms
6,940 KB |
testcase_27 | AC | 24 ms
8,064 KB |
testcase_28 | AC | 250 ms
8,320 KB |
testcase_29 | AC | 132 ms
8,320 KB |
testcase_30 | AC | 2 ms
6,940 KB |
testcase_31 | AC | 2 ms
6,940 KB |
testcase_32 | AC | 115 ms
8,192 KB |
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:41:22: 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." | 41 | n :: Int <- read . head <$> prompt | ^^^^ [2 of 2] Linking a.out
ソースコード
split :: String -> [String] split = go ("", []) where go :: (String, [String]) -> String -> [String] go (a, acc) "" = acc <> [a] go (a, acc) (' ' : xs) = go ("", acc <> [a]) xs go (a, acc) (x : xs) = go (a <> [x], acc) xs prompt :: IO [String] prompt = do split <$> getLine bin :: Int -> [Int] bin x | x <= 1 = [x] | otherwise = let (n, r) = x `quotRem` 2 in bin n <> [r] step :: Int -> Int step = sum . bin solve :: Int -> Int solve n = go [(1, 1)] [] where go :: [(Int, Int)] -> [Int] -> Int go [] _ = -1 go ((p, c) : qs) visited = if p == n then c else let prev = p - step p next = p + step p canPrev = prev > 0 && notElem prev visited canNext = next <= n && notElem next visited q = [(prev, c + 1) | canPrev] <> [(next, c + 1) | canNext] v' = [prev | canPrev] <> [next | canNext] in go (qs <> q) (v' <> visited) main :: IO () main = do n :: Int <- read . head <$> prompt print $ solve n