結果
問題 | No.6 使いものにならないハッシュ |
ユーザー | myuon |
提出日時 | 2015-03-09 09:51:37 |
言語 | Haskell (9.8.2) |
結果 |
AC
|
実行時間 | 1,091 ms / 5,000 ms |
コード長 | 826 bytes |
コンパイル時間 | 6,174 ms |
コンパイル使用メモリ | 170,428 KB |
実行使用メモリ | 11,008 KB |
最終ジャッジ日時 | 2024-09-16 16:25:13 |
合計ジャッジ時間 | 14,650 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
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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 | AC | 1 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 1,091 ms
11,008 KB |
testcase_03 | AC | 36 ms
6,912 KB |
testcase_04 | AC | 48 ms
8,576 KB |
testcase_05 | AC | 95 ms
8,832 KB |
testcase_06 | AC | 238 ms
9,600 KB |
testcase_07 | AC | 86 ms
8,704 KB |
testcase_08 | AC | 165 ms
9,472 KB |
testcase_09 | AC | 49 ms
8,448 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | AC | 52 ms
7,680 KB |
testcase_12 | AC | 358 ms
10,112 KB |
testcase_13 | AC | 35 ms
8,576 KB |
testcase_14 | AC | 48 ms
8,448 KB |
testcase_15 | AC | 231 ms
9,728 KB |
testcase_16 | AC | 99 ms
9,088 KB |
testcase_17 | AC | 340 ms
9,728 KB |
testcase_18 | AC | 852 ms
10,880 KB |
testcase_19 | AC | 317 ms
9,728 KB |
testcase_20 | AC | 290 ms
9,856 KB |
testcase_21 | AC | 18 ms
6,016 KB |
testcase_22 | AC | 294 ms
9,600 KB |
testcase_23 | AC | 321 ms
9,856 KB |
testcase_24 | AC | 277 ms
9,856 KB |
testcase_25 | AC | 123 ms
9,088 KB |
testcase_26 | AC | 421 ms
10,112 KB |
testcase_27 | AC | 228 ms
9,984 KB |
testcase_28 | AC | 124 ms
8,704 KB |
testcase_29 | AC | 597 ms
10,496 KB |
testcase_30 | AC | 457 ms
10,240 KB |
testcase_31 | AC | 300 ms
9,856 KB |
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:10:18: 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." | 10 | solve ns = fst $ head $ iter' $ zip ns $ fmap hash ns where | ^^^^ Main.hs:15:63: 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." | 15 | iter' xs = maximumBy (comparing (\xs -> (length xs, fst $ head xs))) [flip iter [] $ drop p xs|p<-[0..length xs]] | ^^^^ [2 of 2] Linking a.out
ソースコード
import Control.Applicative import Data.List import Data.Ord import Data.Char sieve' = 2:3:[x|i<-[1..],j<-[-1,1], let x = 6*i+j, isPrime x] where isPrime n = null [p|p<-takeWhile (\x -> x*x <=n) sieve', rem n p == 0] solve :: [Int] -> Int solve ns = fst $ head $ iter' $ zip ns $ fmap hash ns where hash x = let x' = sum . fmap digitToInt . show $ x in if length (show x') == 1 then x' else hash x' iter' xs = maximumBy (comparing (\xs -> (length xs, fst $ head xs))) [flip iter [] $ drop p xs|p<-[0..length xs]] iter [] acc = acc iter (x:xs) acc = if snd x `elem` fmap snd acc then acc else iter xs (x:acc) main = do k <- (read :: String -> Int) <$> getLine n <- (read :: String -> Int) <$> getLine print $ solve $ reverse $ dropWhile (<k) $ takeWhile (<=n) $ sieve'