結果
問題 | No.300 平方数 |
ユーザー | aimy |
提出日時 | 2017-04-24 16:24:02 |
言語 | Haskell (9.8.2) |
結果 |
AC
|
実行時間 | 626 ms / 1,000 ms |
コード長 | 649 bytes |
コンパイル時間 | 1,976 ms |
コンパイル使用メモリ | 171,524 KB |
実行使用メモリ | 14,592 KB |
最終ジャッジ日時 | 2024-09-13 11:55:28 |
合計ジャッジ時間 | 12,396 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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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
6,816 KB |
testcase_01 | AC | 2 ms
6,812 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 2 ms
6,944 KB |
testcase_06 | AC | 2 ms
6,944 KB |
testcase_07 | AC | 1 ms
6,944 KB |
testcase_08 | AC | 1 ms
6,940 KB |
testcase_09 | AC | 2 ms
6,940 KB |
testcase_10 | AC | 1 ms
6,940 KB |
testcase_11 | AC | 2 ms
6,940 KB |
testcase_12 | AC | 1 ms
6,940 KB |
testcase_13 | AC | 626 ms
14,464 KB |
testcase_14 | AC | 1 ms
6,944 KB |
testcase_15 | AC | 2 ms
6,940 KB |
testcase_16 | AC | 2 ms
6,940 KB |
testcase_17 | AC | 2 ms
6,940 KB |
testcase_18 | AC | 2 ms
6,940 KB |
testcase_19 | AC | 1 ms
6,940 KB |
testcase_20 | AC | 90 ms
8,960 KB |
testcase_21 | AC | 5 ms
6,940 KB |
testcase_22 | AC | 5 ms
6,944 KB |
testcase_23 | AC | 491 ms
12,032 KB |
testcase_24 | AC | 300 ms
11,648 KB |
testcase_25 | AC | 473 ms
11,776 KB |
testcase_26 | AC | 421 ms
11,648 KB |
testcase_27 | AC | 264 ms
11,776 KB |
testcase_28 | AC | 473 ms
11,776 KB |
testcase_29 | AC | 553 ms
11,904 KB |
testcase_30 | AC | 568 ms
14,464 KB |
testcase_31 | AC | 597 ms
14,592 KB |
testcase_32 | AC | 316 ms
11,904 KB |
testcase_33 | AC | 157 ms
9,856 KB |
testcase_34 | AC | 534 ms
12,032 KB |
testcase_35 | AC | 313 ms
11,520 KB |
testcase_36 | AC | 383 ms
11,904 KB |
testcase_37 | AC | 299 ms
11,648 KB |
testcase_38 | AC | 13 ms
8,064 KB |
testcase_39 | AC | 431 ms
11,776 KB |
testcase_40 | AC | 362 ms
12,032 KB |
testcase_41 | AC | 141 ms
10,112 KB |
testcase_42 | AC | 14 ms
8,192 KB |
testcase_43 | AC | 536 ms
12,160 KB |
testcase_44 | AC | 393 ms
11,904 KB |
testcase_45 | AC | 169 ms
10,112 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:8:73: 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." | 8 | main = readLn >>= print . product . map (\fs -> if odd (length fs) then head fs else 1) . group . factorization | ^^^^ [2 of 2] Linking a.out
ソースコード
import Data.List primes = 2:3:[x | i<-[1..], j<-[-1,1], let x = 6*i+j, isPrime x] where isPrime n = null [i | i<-takeWhile (\x -> x^2 <= n) primes, mod n i == 0] isPrime x = null [y | y<-[2..floor (sqrt (fromIntegral x))], mod x y == 0] main = readLn >>= print . product . map (\fs -> if odd (length fs) then head fs else 1) . group . factorization factorization :: Integer -> [Integer] factorization n = unfoldr fact (n, primes) where q = (floor . sqrt . fromIntegral) n fact (n', pps@(p:ps)) | n' == 1 = Nothing | p > q = Just (n',(1,pps)) | otherwise = let (d,m) = divMod n' p in if m==0 then Just (p,(d,pps)) else fact (n',ps)