Yes.

As an intermediate step, you should consider implementing the function
  reverse_append : 'a list -> 'a list -> 'a list
such that (reverse_append li1 li2) adds li1 *reversed* on top of li2. For
example, reverse_append [1;2] [3;4] is [2;1;3;4].

Is there a particular reason why you're not using the ocaml_beginners list
anymore?  It's a good list for this kind of questions and, if you perceived
a problem with it, it would be interesting to have some feedback about it.

On Sun, Oct 19, 2014 at 2:07 PM, Roelof Wobben <r.wobben@home.nl> wrote:

> Helllo,
>
> Im a beginner which tries to do the 99 ocaml problems.
>
> Now I try to reverse a list.
> Does I need to use two list . one for the old one and one for the reversed
> list.
>
> Roelof
>
>
> --
> Caml-list mailing list.  Subscription management and archives:
> https://sympa.inria.fr/sympa/arc/caml-list
> Beginner's list: http://groups.yahoo.com/group/ocaml_beginners
> Bug reports: http://caml.inria.fr/bin/caml-bugs
>