Search⌘ K
AI Features
Home
Courses
Grokking the Coding Interview Patterns in C++

Solution: Find Center of Star Graph

Discover how to quickly find the center node of a star graph by leveraging the unique property that the center appears in every edge. This lesson teaches a constant time solution by comparing nodes in the first two edges, helping you apply graph theory patterns effectively.

We'll cover the following...

Statement

Given an array edges where each element edges[i] = [ui, vi] represents an edge between nodes ui and vi in an undirected star graph,A star graph is a graph where one central node is connected to every other node. If there are n nodes, then the central node must be connected to all other n-1 nodes. find the central node of this star graph.

Note: A star graph is a graph where one central node is connected to every other node. This implies that a star graph with n nodes has exactly n - 1 edges.

Constraints:

  • 3≤3 \leq n ≤103\leq 10^3

  • edges.length ==== n - 1 ...