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Solution: Tree Diameter

Explore how to compute the diameter of an undirected tree using depth-first search techniques. Learn to track the two longest descendant paths from each node, update the longest diameter efficiently, and apply graph traversal to solve tree diameter problems in coding interviews.

Statement

Given an undirected tree with nn nodes labeled from 00 to n1n - 1, represented by a 2D array edges where edges.length==n1 ...