Using recursion to sum two numbers (python)

Posted by James on Stack Overflow See other posts from Stack Overflow or by James
Published on 2010-05-02T23:17:24Z Indexed on 2010/05/02 23:27 UTC
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recursive

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function

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python

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homework

I need to write a recursive function that can add two numbers (x, y), assuming y is not negative. I need to do it using two functions which return x-1 and x+1, and I can't use + or - anywhere in the code. I have no idea how to start, any hints?

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