程序代写代做代考 DNA C flex map map f [x, y, z] = [f x, f y, f z]
map map f [x, y, z] = [f x, f y, f z] fmap_List :: (a -> b) -> [] a -> [] b — “[] a” means “[a]” in types. fmap_List f [] = [] fmap_List f (x:xs) = f x : fmap_List f xs Maybe data Maybe a = Nothing | Just a […]
程序代写代做代考 DNA C flex map map f [x, y, z] = [f x, f y, f z] Read More »