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Solution: Sum of Distances in a Tree

Explore how to solve the problem of finding the sum of distances from each node to all others in a tree. This lesson guides you through utilizing two depth-first search traversals to compute subtree sizes and propagate distance sums efficiently. You will learn to optimize calculations to avoid redundant work and understand the time and space complexity of this approach.

Statement

Given a connected, undirected tree with n nodes, labeled from 00 to n1n - 1, and n1n - 1 edges. The edges are provided in an array, where each element edges[i] =[ai,bi] ...