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Solution: Longest Path With Different Adjacent Characters

Explore how to determine the longest path in a rooted tree where no two consecutive nodes have the same character. Understand how to use a parent array to calculate node children, process leaf nodes via topological order, and track longest distinct chains. This lesson helps you implement an efficient solution with linear time complexity for this pattern.

Statement

You are given a rooted tree with nn nodes, numbered from 00 to n1n - 1, where the tree is connected, undirected, and has no cycles. The tree is represented by a 0-indexed array parent of size nn, where parent[i] is the parent of node ...