Can anyone please explain the problem in simple words.
"PLEASE QUESTION IN COMMENT OF PROBLEM"
Don’t ask question regd. ongoing contest in FORUM
They never reply.
The question isn’t written clearly at all, and OP is just asking for an explanation I think it is ok.
It’s all about Imagination! Just think out of box in that one where you are stuck after that you will get the answer!
I asked a question in the comment section of problem 10 hrs ago and no one has replied .
comment section would have been better, though the question isn’t even clear to me.