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Grokking the Coding Interview Patterns in Go

Solution: Sum of Distances in a Tree

Explore how to use two depth-first search (DFS) traversals to compute the sum of distances from each node to all others in a tree. Understand how subtree sizes and distance propagation optimize the process to avoid redundant calculations, delivering an efficient O(n) time solution.

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Statement

Given a connected, undirected tree with n nodes, labeled from 00 to n−1n - 1, and n−1n - 1 edges. The edges are provided in an array, where each element edges[i] =[ai,bi] ...