Array Transform Problem

general
1

Here’s the link to the problem : http://www.codechef.com/problems/ARRAYTRM

I haven’t come across a similar problem before, and after giving much thought to it, I am unable to arrive at a suitable approach to solve this problem. How should I proceed solving the problem?

2

Think of it as a maths riddle … u will see it reduces to validating one or two simple equations

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