haskell max function
-- fold the list: maximum' :: Ord a => [a] -> a maximum' = foldr1 (\x y ->if x >= y then x else y) --For the recursive version (no double checking): maximum'' :: Ord a => [a] -> a maximum'' [x] = x maximum'' (x:x':xs) = maximum' ((if x >= x' then x else x'):xs) -- If you want wards: maximum'' :: Ord a => [a] -> a maximum'' [x] = x maximum'' (x:x':xs) | x >= x' = maximum' (x:xs) maximum'' (x:x':xs) | otherwise = maximum' (x':xs)
