結果
| 問題 | No.647 明太子 |
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2018-02-09 23:14:11 |
| 言語 | Haskell (9.10.1) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 1,074 bytes |
| 記録 | |
| コンパイル時間 | 9,106 ms |
| コンパイル使用メモリ | 180,916 KB |
| 実行使用メモリ | 816,896 KB |
| 最終ジャッジ日時 | 2024-12-26 08:00:09 |
| 合計ジャッジ時間 | 25,379 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 19 TLE * 1 |
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:21:33: 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."
|
21 | sls = map (\p -> (length p, head p)) . group . sort $ ls
| ^^^^
[2 of 2] Linking a.out
ソースコード
import Control.Monad (replicateM)
import Data.ByteString.Char8 (ByteString)
import qualified Data.ByteString.Char8 as B
import Data.List
import Data.Char (isSpace)
main :: IO ()
main = do
n <- getl $ readi B.readInt
abs <- replicateM n (getl $ readil B.readInt)
m <- getl $ readi B.readInt
xys <- replicateM m (getl $ readil B.readInt)
mapM_ print $ solve abs xys
solve :: [[Int]] -> [[Int]] -> [Int]
solve abs xys
| null ls = [0]
| otherwise = mls
where
ls = [i | [a, b] <- abs, (i, [x, y]) <- zip [1..] xys, a >= x && b <= y]
sls = map (\p -> (length p, head p)) . group . sort $ ls
mxl = maximum . map fst $ sls
mls = sort $ map snd $ filter (\q -> fst q == mxl) sls
getl :: (ByteString -> a) -> IO a
getl f = f <$> B.getLine
readi :: Integral a => (ByteString -> Maybe (a, ByteString)) -> ByteString -> a
readi f s = let Just (n, _) = f s in n
readil :: Integral a => (ByteString -> Maybe (a, ByteString)) -> ByteString -> [a]
readil f = unfoldr g
where
g s = do
(n, s') <- f s
return (n, B.dropWhile isSpace s')