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Grokking the Coding Interview Patterns in JavaScript

Solution: Bus Routes

Explore how to determine the least number of bus routes needed to travel from a source to a destination station by applying graph traversal concepts. Learn to build adjacency lists and implement a BFS algorithm to efficiently solve route finding, understanding both time and space complexities for this graph problem.

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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 ...