Hi Abigail, I agree that solution is not possible for the case you have given. I understood the idea of even parity as you described. So the first step now will become to determine if solution is possible or not!.That's easy based on your idea of evenness of inversions. Then find the solution only if possible.
Artist __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com
