This is the problem. This is my WA attempt.
What I have observed is that a maximum of (n/2-1) maxima is possible for an array of size n, where n is even. So initially I created another array q such that the final array a = p+q , has all elements equal. Then I greedily tried to create (n/2-1) maximas by swapping the elements of array q( In the code it's ans array). I am willing to explain more if clarification is needed. Please just give me the hint, I want to solve it myself.
I will be thankful for any help!
Auto comment: topic has been updated by CandidFlakes (previous revision, new revision, compare).
look at the tests
and I think you can look at the hints in the editorial
Thanks so much for reply!
Quick hint/intuition: Indices of all local maximas in an optimal arrangement should have the same parity.
Thanks so much for the hint! Isn't an arrangement like this possible-> https://www.autodraw.com/share/KIJY909STG3I ?