C Programming Polynomials Help

Hi,

I need to implement an algorithm into a functional solution.
Any idea how to achieve this?

Here is the description:

Wrap the polynomials in a structure containing a (possibly dynamic) array.
Pass the 2 structures and the prime to the function; return another structure that contains 2 of the polynomial structure.

Then complain to your teacher that returning two things from a function is very awkward.