How to solve this tree problem?

Revision en1, by sak3t, 2019-04-26 20:45:26

Given a weighted tree of $$$N <= 10^5$$$ nodes, answer $$$Q <= 10^5$$$ queries.
Each query will have $$$node, k$$$ asking number of all the nodes having even weight in the subtree of $$$node$$$ and at a distance $$$k$$$ from $$$node$$$.
Please provide hints.

Tags #trees


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en1 English sak3t 2019-04-26 20:45:26 271 Initial revision (published)