結果

問題 No.2947 Sing a Song
コンテスト
ユーザー tomcat1233
提出日時 2024-10-25 22:19:30
言語 Haskell
(9.10.1)
結果
AC  
実行時間 23 ms / 2,000 ms
コード長 2,391 bytes
コンパイル時間 6,850 ms
コンパイル使用メモリ 180,404 KB
実行使用メモリ 9,600 KB
最終ジャッジ日時 2024-10-25 22:19:44
合計ジャッジ時間 10,149 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge3
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 * 25
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 )

Main.hs:53:14: warning: [GHC-63394] [-Wx-partial]
    In the use of ‘head’
    (imported from Data.List, 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."
   |
53 | nubOrd = map head.group.sort
   |              ^^^^

Main.hs:59:13: warning: [GHC-63394] [-Wx-partial]
    In the use of ‘head’
    (imported from Data.List, 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."
   |
59 |         h = head xs
   |             ^^^^
[2 of 2] Linking a.out

ソースコード

diff # 

import Control.Monad
import Data.Maybe
import qualified Data.ByteString.Char8 as BS
import Control.Monad.ST             
import Data.Ix
import Data.Array (Array)
import Data.Array.IArray
import Data.Array.IO             
import Data.Array.MArray          
import Data.Array.ST                
import Data.Array.Unboxed (UArray)
import Data.Char
import Data.List as L
import Data.Foldable
import Control.Exception
import Data.Array.Base (STUArray(STUArray), UArray (UArray))
import Data.ByteString.Char8 (ByteString)
import Data.Array.IO.Internals (IOUArray(IOUArray))
import Data.Ord (comparing, Down (Down))
tuplify2 :: [b] -> (b, b)
tuplify2 (x:y:_) = (x,y)
tuplify2 _ = undefined

--Input functions with ByteString
readInt :: ByteString -> Int
readInt = fst . fromJust . BS.readInt
readIntTuple :: ByteString -> (Int, Int)
readIntTuple = tuplify2 . map readInt . BS.words
readIntList :: ByteString -> [Int]
readIntList = map readInt . BS.words

getInt :: IO Int
getInt = readInt <$> BS.getLine
getIntList :: IO [Int]
getIntList = readIntList <$> BS.getLine
getIntListX :: IO [Int]
getIntListX = readIntList <$> BS.getContents
getIntNList :: Integral a => a -> IO [[Int]]
getIntNList n = map readIntList <$> replicateM (fromIntegral n) BS.getLine
getIntMatrix :: IO [[Int]]
getIntMatrix = map readIntList . BS.lines <$> BS.getContents
getIntTuple :: IO (Int, Int)
getIntTuple = readIntTuple <$> BS.getLine
getIntNTuples :: Integral a => a -> IO [(Int, Int)]
getIntNTuples n = map readIntTuple <$> replicateM (fromIntegral n) BS.getLine
getIntTuples :: IO [(Int, Int)]
getIntTuples = map readIntTuple . BS.lines <$> BS.getContents
putYesNo :: Bool -> IO ()
putYesNo bl = putStrLn $ if bl then "Yes" else "No"
putInts :: [Int] -> IO ()
putInts x = putStrLn $ unwords $ map show x
nubOrd :: Eq a => Ord a => [a] -> [a]
nubOrd = map head.group.sort
getMatInt :: Int -> Int -> IO (UArray (Int, Int) Int)
getMatInt h w = listArray ((1, 1), (h, w)) . concat <$> replicateM h getIntList

f s t ls lt a = replicate ss s ++ replicate tt t
  where xs = [(x, y) |x <- [a,a-1..0],let lsx = ls * x, let y = max 0 (div (a - lsx) lt), lsx + lt * y == a]
        h = head xs
        ss = fst h
        tt = snd h

main :: IO ()
main = do
  n <- getInt
  [s, t] <- words <$> getLine
  as <- getIntList
  let ls = length s
  let lt = length t
  let ans = map (f s t ls lt) as
  mapM_ (putStrLn . unwords) ans
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