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Help Needed: ICL2015 Problem

Revision en1, by mochow, 2015-06-14 04:56:08

I was trying to solve this problem from ICL2015div2 finals. I understand this is a problem on combinatorics (and perhaps DP) but I could not find a way towards solution.

Problem Link

I am weak in DP problems. They seem overwhelming to me most of the times. An elaborate explanations will surely be helpful for me. :)

Thanks in advance.

Tags dp, combinatorics, icl

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en1 English mochow 2015-06-14 04:56:08 418 Initial revision (published)