Hi all, I have a question about queries on a tree.
You are given a tree and each node has a value, for each node 'u' you should count the number of nodes 'v' that exist in the subtree of node u with the same value than 'u'.
Input An integer n (n <= 10^5) the number of nodes in the tree Each of the next n — 1 lines describes and edge on the tree The last line consists of n integers the a_i (-10^5 <= a_i <= 10^5) the value for the node i (1, 2,... n)
Output n integers with the answer for the i-th node
EXAMPLE
INPUT:
9
1 3
3 5
3 4
1 2
2 6
2 7
7 8
7 9
5 2 -1 -1 5 5 -1 2 -1
OUTPUT
2 1 1 0 0 0 1 0 0