recursive function help..

i want a program that will read a list of numbers and a desired sum and determine the subset of numbers in the list that yield that sum if such a sum exists. but i can't make it :/ please help me..

You'll need to do better than that if you want help with your homework. The more effort you can show you have put in the more help you are likely to get.

Why can't you do it ?
What have you tried so far?
Have you tried doing this yourself using a pen and paper and writing out the steps you take.