HBC202310A Simple Problem On A Tree题解

想要检验自己的编程水平？来试试全网最全C++题库，让您在挑战中不断进步。

We have met so many problems on the tree, so today we will have a simple problem on a tree. You are given a tree (an acyclic undirected connected graph) with mathbf{N} N nodes. The tree nodes are numbered from mathbf{1} 1 to mathbf{N} N. Each node has a weight mathbf{W_i} W i ​ . We will have four kinds of operations on it and you should solve them efficiently. Wish you have fun!

不断挑战自我，才能突破极限！全网最全C++题库，让您在编程道路上越走越远。

标签： HBC202310A Simple Problem On A Tree题解