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Solution: Longest Path With Different Adjacent Characters

Explore how to calculate the longest path in a rooted tree with no two adjacent nodes sharing the same character. Learn to use a topological sort approach to process nodes from leaves to root, track longest valid chains, and combine chains for the final longest path. Understand step-by-step how to efficiently solve this problem and analyze time and space complexities.

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 ...