Hello Haskell Community -

 

I am a professional programmer with 11 years experience, yet I just do not seem to be able to get the hang of even simple things in Haskell.  I am trying to write a function that takes a list and returns the last n elements.

 

There may be a function which I can just call that does that, but I am trying to roll my own just to understand the concept.

 

Let's call the function n_lastn and, given a list  [1,2,3,4,5], I would like

n_lastn 3 = [3,4,5]

 

Seems like it would be something like:

 

n_lastn:: [a]->Int->[a]

n_lastn 1 (xs) = last(xs)

n_lastn n (x:xs) = ????

 

The issue is I do not see how you can store the last elements of the list.

 

Thanks in advance.

 

ctauss