User talk:Marcelo.parrela

-- by Marcelo Parrela (marcelo.parrela@gmail.com)
quicksort' []  = []
quicksort' (a:as) = quicksort' l1 ++ a : quicksort' l2 
    where
        (l1,l2) = separate as a [] []

        separate [] _ a b = (a,b)
        separate (l:ls) a l1 l2
            | l <= a    = separate ls a l1' l2
            | otherwise = separate ls a l1 l2'
            where
                l1' = l1++[l]
                l2' = l2++[l]