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Grokking the Coding Interview Patterns in JavaScript

Solution: Bus Routes

Explore how to use graph algorithms and BFS traversal to determine the least number of bus routes needed to travel between two stations. Understand how to build adjacency lists, implement BFS for shortest paths, and manage visited nodes for efficient search.

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Statement

You are given an array, routes, representing bus routes where routes[i] is a bus route that the ithi^{th} bus repeats forever. Every route contains one or more ...