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Problem Description We have met so many problems on the tree, so today we will have a query problem on a set of trees. There are N nodes, each node wi 阅读全文
posted @ 2016-03-03 20:32
swm_sxt
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摘要:
Description You are given a tree (an acyclic undirected connected graph) with N nodes, and edges numbered 1, 2, 3...N-1. We will ask you to perfrom so 阅读全文
posted @ 2016-03-03 20:27
swm_sxt
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