Created
September 30, 2015 15:05
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module NewModule2 where | |
import Data.List.Split | |
--Написать функцию parts, которая для данного списка проверяет, можно ли его разбить | |
--на несколько строго возрастающих кусков одинаковой длины. | |
-- | |
--Длина кусков должна быть не меньше 2. Кусок может быть и только один. | |
aList = [1,2,3,4, 1,2,3,4,5,6,7,8,9,11, 1,2,3,4,5,6,8,11, 5,6] | |
diff :: Num a => [a] -> [a] | |
diff xs = zipWith (-) (tail xs) xs | |
extendR xs = xs ++ [last xs] | |
diff' = extendR . map signum . diff | |
lengths :: (Ord a,Num a) => [a] -> [Int] | |
lengths = map length . split (dropFinalBlank . keepDelimsR . whenElt $ (<=0)) . diff' | |
parts = (>1) . foldl1 gcd . lengths | |
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