How to find the recursion tree for this type of problems ?

Revision en1, by pvpcoder, 2016-01-10 08:03:28

I am trying to solve topcoder problem I read the editorial but I am not able to get the recurrence any one help me in finding the recursion tree.

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en1 English pvpcoder 2016-01-10 08:03:28 344 Initial revision (published)