Search⌘ K
AI Features
Home
Courses
Grokking the Coding Interview Patterns in C#

Longest Path With Different Adjacent Characters

Explore how to determine the longest path in a rooted tree ensuring no two consecutive nodes share the same character. This lesson helps you understand the problem setup, constraints, and develop a solution applying topological sorting techniques and tree traversal concepts.

We'll cover the following...

Statement

You are given a rooted tree with nn nodes, numbered from 00 to n−1n - 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 ...