結果

問題 No.565 回転拡大
ユーザー okadukiokaduki
提出日時 2017-09-09 07:12:33
言語 Haskell
(9.8.2)
結果
WA  
実行時間 -
コード長 776 bytes
コンパイル時間 9,298 ms
コンパイル使用メモリ 180,308 KB
実行使用メモリ 5,248 KB
最終ジャッジ日時 2024-11-07 07:49:02
合計ジャッジ時間 10,305 ms
ジャッジサーバーID
（参考情報） 		judge5 / judge4
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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 WA -
testcase_01 AC 1 ms
5,248 KB
testcase_02 WA -
testcase_03 AC 2 ms
5,248 KB
testcase_04 WA -
testcase_05 WA -
testcase_06 WA -
testcase_07 WA -
testcase_08 AC 1 ms
5,248 KB
testcase_09 WA -
testcase_10 WA -
testcase_11 WA -
testcase_12 AC 2 ms
5,248 KB
testcase_13 WA -
testcase_14 AC 2 ms
5,248 KB
testcase_15 WA -
testcase_16 WA -
testcase_17 WA -
testcase_18 WA -
testcase_19 WA -
testcase_20 WA -
testcase_21 WA -
testcase_22 WA -
testcase_23 AC 1 ms
5,248 KB
testcase_24 WA -
testcase_25 AC 1 ms
5,248 KB
testcase_26 WA -
testcase_27 AC 2 ms
5,248 KB
testcase_28 WA -
testcase_29 AC 2 ms
5,248 KB
testcase_30 AC 2 ms
5,248 KB
testcase_31 AC 1 ms
5,248 KB
testcase_32 AC 2 ms
5,248 KB
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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:10:20: 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."
   |
10 | rotr xs = if null (head xs) then []
   |                    ^^^^

Main.hs:11:21: 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."
   |
11 |           else [map head xs] ++ rotr (map tail xs)
   |                     ^^^^

Main.hs:11:43: warning: [GHC-63394] [-Wx-partial]
    In the use of ‘tail’
    (imported from Prelude, but defined in GHC.List):
    "This is a partial function, it throws an error on empty lists. Replace it with drop 1, or use pattern matching or Data.List.uncons instead. Consider refactoring to use Data.List.NonEmpty."
   |
11 |           else [map head xs] ++ rotr (map tail xs)
   |                                           ^^^^
[2 of 2] Linking a.out

ソースコード

diff # 

{-# LANGUAGE FlexibleContexts, OverloadedStrings #-}
import Control.Applicative
import Control.Monad
import qualified Data.ByteString.Char8 as B
import Data.Maybe (fromJust)
import Text.Printf
import Debug.Trace

rot i xs = snd $ until ((==0) . fst) (\(i,ys) -> (i-1,rotr ys)) (i,xs)
rotr xs = if null (head xs) then []
          else [map head xs] ++ rotr (map tail xs)

zoom k = foldr f []
  where f x acc = replicate k (concat (map (replicate k) x)) ++ acc

main = do
  [r,k] <- getInts
  [h,w] <- getInts
  ss <- rot (r `div` 90) <$> replicateM h getLine
  mapM_ putStrLn $ zoom k ss


-- util
getInts :: IO [Int]
getInts = map (fst . fromJust . B.readInt) . B.words <$> B.getLine

substr :: Int -> Int -> B.ByteString -> B.ByteString
substr b l s = B.take l $ B.drop b s
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