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Grokking the Coding Interview Patterns in C#

Solution: Graph Valid Tree

Explore how to verify if a graph is a valid tree by analyzing its edges and nodes. Learn to implement an adjacency list and use depth-first search (DFS) to ensure all nodes are connected and free from cycles, resulting in an efficient graph validation method.

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Statement

Given n as the number of nodes and an array of the edges of a graph, find out if the graph is a valid tree. The nodes of the graph are labeled from 00 to n−1n - 1, and edges[i]=[x,y]edges[i] = [x, y] represents an undirected edge connecting the nodes xx and yy ...