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Data Structures for Coding Interviews in Python

Solution: Check If a Path Exists between Two Vertices

Explore how to verify if a path exists between two nodes in a bidirectional graph by implementing a breadth-first search algorithm. Understand graph representation with adjacency lists and practice programming solutions with realistic constraints and complexity analysis.

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Statement

Given a 2D list, edges, representing a bidirectional graph of n nodes, where each vertex is labeled from 00 to n−1n-1. Each edge in the graph is represented as a pair, [xi,yi][x_i, y_i], showing a bidirectional edge between xix_i and yiy_i ...