Query on a tree VI

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You are given a tree (an acyclic undirected connected graph) with n nodes. The tree nodes are numbered from 1 to n. Each node has a color, white or black. All the nodes are black initially. We will ask you to perfrom some instructions of the following form: - 0 u: ask for how many nodes are connected to u, two nodes are connected if all the node on the path from u to v (inclusive u and v) have

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solution.cppC++17

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