結果
問題 | No.300 平方数 |
ユーザー | はむ吉🐹 |
提出日時 | 2015-11-13 22:37:17 |
言語 | Haskell (9.8.2) |
結果 |
AC
|
実行時間 | 65 ms / 1,000 ms |
コード長 | 876 bytes |
コンパイル時間 | 5,003 ms |
コンパイル使用メモリ | 170,624 KB |
実行使用メモリ | 13,568 KB |
最終ジャッジ日時 | 2024-09-13 14:41:48 |
合計ジャッジ時間 | 6,689 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 | 2 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,812 KB |
testcase_02 | AC | 2 ms
6,812 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 1 ms
6,940 KB |
testcase_05 | AC | 1 ms
6,944 KB |
testcase_06 | AC | 2 ms
6,944 KB |
testcase_07 | AC | 2 ms
6,944 KB |
testcase_08 | AC | 2 ms
6,944 KB |
testcase_09 | AC | 1 ms
6,940 KB |
testcase_10 | AC | 1 ms
6,940 KB |
testcase_11 | AC | 2 ms
6,944 KB |
testcase_12 | AC | 1 ms
6,944 KB |
testcase_13 | AC | 65 ms
13,568 KB |
testcase_14 | AC | 2 ms
6,940 KB |
testcase_15 | AC | 2 ms
6,940 KB |
testcase_16 | AC | 1 ms
6,940 KB |
testcase_17 | AC | 2 ms
6,944 KB |
testcase_18 | AC | 1 ms
6,944 KB |
testcase_19 | AC | 2 ms
6,940 KB |
testcase_20 | AC | 3 ms
6,944 KB |
testcase_21 | AC | 1 ms
6,940 KB |
testcase_22 | AC | 1 ms
6,944 KB |
testcase_23 | AC | 6 ms
6,940 KB |
testcase_24 | AC | 13 ms
8,704 KB |
testcase_25 | AC | 55 ms
13,568 KB |
testcase_26 | AC | 17 ms
8,960 KB |
testcase_27 | AC | 13 ms
8,704 KB |
testcase_28 | AC | 51 ms
10,496 KB |
testcase_29 | AC | 41 ms
10,112 KB |
testcase_30 | AC | 4 ms
6,944 KB |
testcase_31 | AC | 5 ms
6,940 KB |
testcase_32 | AC | 5 ms
6,944 KB |
testcase_33 | AC | 23 ms
9,984 KB |
testcase_34 | AC | 59 ms
13,440 KB |
testcase_35 | AC | 38 ms
9,984 KB |
testcase_36 | AC | 16 ms
8,960 KB |
testcase_37 | AC | 16 ms
8,704 KB |
testcase_38 | AC | 2 ms
6,940 KB |
testcase_39 | AC | 2 ms
6,940 KB |
testcase_40 | AC | 2 ms
6,944 KB |
testcase_41 | AC | 13 ms
8,704 KB |
testcase_42 | AC | 2 ms
6,944 KB |
testcase_43 | AC | 2 ms
6,940 KB |
testcase_44 | AC | 3 ms
6,944 KB |
testcase_45 | AC | 3 ms
6,944 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:23:32: 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." | 23 | factors = map (\ps -> (head ps, fromIntegral $ length ps)) $ group $ factorize x | ^^^^ [2 of 2] Linking a.out
ソースコード
import Data.List (group) primes :: Integral a => [a] primes = map fromIntegral primes' where primes' = [2, 3, 5] ++ sieve 5 7 (drop 2 primes') sieve m s (p : ps) = [n | n <- ns, gcd m n == 1] ++ sieve (m * p) (p * p) ps where ns = [x + y | x <- [s, s + 6 .. p * p - 2], y <- [0, 4]] factorize :: Integral a => a -> [a] factorize 1 = [] factorize n = factorize' n primes where factorize' n ps@(p : pr) | p * p > n = [n] | m == 0 = p : factorize' d ps | otherwise = factorize' n pr where (d, m) = divMod n p getY :: Integer -> Integer getY x = y where factors = map (\ps -> (head ps, fromIntegral $ length ps)) $ group $ factorize x y = product $ map (\(f, k) -> if odd k then f else 1) factors main :: IO () main = print . getY =<< readLn