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gdejohn/digits.hs

Last active May 28, 2016 11:20
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digits.hs
import Control.Applicative (liftA2)
import Control.Monad (guard)
import Data.Functor ((<$))
import Data.List (unfoldr)
import Data.Tuple (swap)
digits :: Integer -> [Integer]
digits = reverse . unfoldr (liftA2 (<$) (swap . (`divMod` 10)) (guard . (> 0)))
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