結果
問題 | No.286 Modulo Discount Store |
ユーザー | こまる |
提出日時 | 2020-11-04 21:04:49 |
言語 | Haskell (9.8.2) |
結果 |
CE
(最新)
AC
(最初)
|
実行時間 | - |
コード長 | 2,252 bytes |
コンパイル時間 | 386 ms |
コンパイル使用メモリ | 202,880 KB |
最終ジャッジ日時 | 2024-11-14 23:54:04 |
合計ジャッジ時間 | 944 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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コンパイルエラー時のメッセージ・ソースコードは、提出者また管理者しか表示できないようにしております。(リジャッジ後のコンパイルエラーは公開されます)
ただし、clay言語の場合は開発者のデバッグのため、公開されます。
ただし、clay言語の場合は開発者のデバッグのため、公開されます。
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 ) Main.hs:16:9: error: [GHC-87543] Ambiguous occurrence ‘.<<.’. It could refer to either ‘Data.Bits..<<.’, imported from ‘Data.Bits’ at Main.hs:6:1-26, or ‘Main..<<.’, defined at Main.hs:55:1. | 16 | inf = 1 .<<. 30 - 1 | ^^^^ Main.hs:23:26: error: [GHC-87543] Ambiguous occurrence ‘.<<.’. It could refer to either ‘Data.Bits..<<.’, imported from ‘Data.Bits’ at Main.hs:6:1-26, or ‘Main..<<.’, defined at Main.hs:55:1. | 23 | ms <- VUM.unsafeNew (1 .<<. n) :: IO (VUM.IOVector Int) | ^^^^ Main.hs:24:26: error: [GHC-87543] Ambiguous occurrence ‘.<<.’. It could refer to either ‘Data.Bits..<<.’, imported from ‘Data.Bits’ at Main.hs:6:1-26, or ‘Main..<<.’, defined at Main.hs:55:1. | 24 | dp <- VUM.replicate (1 .<<. n) inf | ^^^^ Main.hs:25:10: error: [GHC-87543] Ambiguous occurrence ‘.<<.’. It could refer to either ‘Data.Bits..<<.’, imported from ‘Data.Bits’ at Main.hs:6:1-26, or ‘Main..<<.’, defined at Main.hs:55:1. | 25 | rep (1 .<<. n) $ \i -> do | ^^^^ Main.hs:26:34: error: [GHC-87543] Ambiguous occurrence ‘.<<.’. It could refer to either ‘Data.Bits..<<.’, imported from ‘Data.Bits’ at Main.hs:6:1-26, or ‘Main..<<.’, defined at Main.hs:55:1. | 26 | rep n $ \j -> when (i .&. (1 .<<. j) /= 0) $ VUM.unsafeModify ms (+ xs VU.! j) i | ^^^^ Main.hs:29:10: error: [GHC-87543] Ambiguous occurrence ‘.<<.’. It could refer to either ‘Data.Bits..<<.’, imported from ‘Data.Bits’ at Main.h
ソースコード
{-# LANGUAGE BangPatterns #-} {-# LANGUAGE MagicHash #-} import Control.Monad import Control.Monad.State import Data.Bits import Data.Coerce import Data.Char import GHC.Exts import qualified Data.ByteString.Char8 as BSC8 import qualified Data.Vector.Fusion.Stream.Monadic as VFSM import qualified Data.Vector.Unboxed as VU import qualified Data.Vector.Unboxed.Mutable as VUM inf :: Int inf = 1 .<<. 30 - 1 {-# INLINE inf #-} main :: IO () main = do n <- readLn :: IO Int xs <- parseN1 n ms <- VUM.unsafeNew (1 .<<. n) :: IO (VUM.IOVector Int) dp <- VUM.replicate (1 .<<. n) inf rep (1 .<<. n) $ \i -> do rep n $ \j -> when (i .&. (1 .<<. j) /= 0) $ VUM.unsafeModify ms (+ xs VU.! j) i VUM.unsafeModify ms (`mod` 1000) i VUM.unsafeWrite dp 0 0 rep (1 .<<. n) $ \i -> rep n $ \j -> do let next = i .|. (1 .<<. j) item <- VUM.unsafeRead ms i let value = max 0 (xs VU.! j - item) dpi <- VUM.unsafeRead dp i VUM.unsafeModify dp (min (dpi + value)) next print =<< VUM.unsafeRead dp (1 .<<. n - 1) type CParser a = StateT BSC8.ByteString Maybe a runCParser :: CParser a -> BSC8.ByteString -> Maybe (a, BSC8.ByteString) runCParser = runStateT {-# INLINE runCParser #-} int :: CParser Int int = coerce $ BSC8.readInt . BSC8.dropWhile isSpace {-# INLINE int #-} parseN1 :: Int -> IO (VU.Vector Int) parseN1 n = VU.unfoldrN n (runCParser int) <$> BSC8.getContents {-# INLINE parseN1 #-} infixl 8 .<<., .>>., .>>>. infixl 6 .^. (.<<.) :: Bits b => b -> Int -> b (.<<.) = unsafeShiftL {-# INLINE (.<<.) #-} (.>>.) :: Bits b => b -> Int -> b (.>>.) = unsafeShiftR {-# INLINE (.>>.) #-} (.>>>.) :: Int -> Int -> Int (.>>>.) (I# x#) (I# i#) = I# (uncheckedIShiftRL# x# i#) {-# INLINE (.>>>.) #-} (.^.) :: Bits b => b -> b -> b (.^.) = xor {-# INLINE (.^.) #-} stream :: Monad m => Int -> Int -> VFSM.Stream m Int stream !l !r = VFSM.Stream step l where step x | x < r = return $ VFSM.Yield x (x + 1) | otherwise = return $ VFSM.Done {-# INLINE [0] step #-} {-# INLINE [1] stream #-} rep :: Monad m => Int -> (Int -> m ()) -> m () rep n = flip VFSM.mapM_ (stream 0 n) {-# INLINE rep #-}