Timus nice problem

Revision en1, by RomeoFantastik, 2015-06-13 16:19:04

Hi guys! Can you help me please with some problem I found recently? http://acm.timus.ru/problem.aspx?space=1&num=1099

I think it'a a maximum flow problem, but I can't figure out how to solve it. Some say something about Flower Trees, but I don't actually know what they are. Thanks in advance! :)

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en1 English RomeoFantastik 2015-06-13 16:19:04 321 Initial revision (published)