結果
| 問題 |
No.313 π
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2020-11-08 00:40:30 |
| 言語 | Haskell (9.10.1) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 1,743 bytes |
| コンパイル時間 | 7,461 ms |
| コンパイル使用メモリ | 217,788 KB |
| 実行使用メモリ | 8,448 KB |
| 最終ジャッジ日時 | 2024-07-22 14:59:13 |
| 合計ジャッジ時間 | 5,053 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 |
|---|---|
| sample | WA * 2 |
| other | WA * 32 |
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
{-# LANGUAGE BangPatterns #-}
{-# LANGUAGE OverloadedLists #-}
import Control.Monad
import Control.Monad.State
import Data.Coerce
import Data.Word
import Unsafe.Coerce
import qualified Data.ByteString as BS
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
piDist :: VU.Vector Int
piDist = [20104, 20063, 19892, 20011, 19874, 20199, 19898, 20163, 19956, 19841]
{-# INLINE piDist #-}
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 #-}
main :: IO ()
main = do
bs <- (VU.map (subtract (48 :: Word8))) <$> seqInput 200002
dp <- VUM.replicate 10 (0 :: Int)
rep 200002 $ \i -> when (bs VU.! i /= 254) $ VUM.unsafeModify dp succ (unsafeCoerce $ bs VU.! i)
xs <- VU.unsafeFreeze dp
let ys = VU.zipWith (-) piDist xs
a = VU.findIndex (< 0) ys
b = VU.findIndex (> 0) ys
putStrLn $ show a <> " " <> show b
type CParser a = StateT BSC8.ByteString Maybe a
runCParser :: CParser a -> BSC8.ByteString -> Maybe (a, BSC8.ByteString)
runCParser = runStateT
{-# INLINE runCParser #-}
byte :: CParser Word8
byte = coerce BS.uncons
{-# INLINE byte #-}
seqInput :: Int -> IO (VU.Vector Word8)
seqInput n = VU.unfoldrN n (runCParser byte) <$> BSC8.getLine
{-# INLINE seqInput #-}