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Grokking the Coding Interview Patterns in C#

Solution: Sum of Distances in a Tree

Explore how to solve the sum of distances problem in a tree structure using two depth-first search traversals. Learn to calculate subtree sizes and propagate distance sums to achieve an efficient O(n) time solution. Understand the algorithm and improve your tree traversal and problem-solving skills for coding interviews.

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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]= [a_i, b_i] represents an edge between nodes aia_i and bi ...