Search⌘ K
AI Features

Solution: Longest Path With Different Adjacent Characters

Explore how to determine the longest path in a rooted tree such that no two consecutive nodes share the same character. Understand topological sorting in trees, track longest chains from children, and combine chains efficiently to solve this problem. Gain skills to implement this solution with optimal time and space complexity.

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 ...