SCUT_Pein

DescriptionA rooted tree is a well-known data structure in computer science and engineering. An example is shown below:  In the figure, each node is labeled with an integer from {1, 2,...,16

DescriptionWrite a program that takes as input a rooted tree and a list of pairs of vertices. For each pair (u,v) the program determines the closest common ancestor of u and v in the tree. The clo

DescriptionFarmer John's cows refused to run in his marathon since he chose a path much too long for their leisurely lifestyle. He therefore wants to find a path of a more reasonable length. The i

DescriptionA network administrator manages a large network. The network consists of N computers and M links between pairs of computers. Any pair of computers are connected directly or indirectly

You are given a tree with N nodes.The tree nodes are numbered from 1 to N.Each node has an integer weight.We will ask you to perform the following operation:u v k : ask for the kth minimum wei

一：Tarjan离线求LCA