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Data Structures for Coding Interviews in C++

Solution: Find the Shortest Path between Two Vertices

Explore how to implement the Breadth-First Search algorithm to determine the shortest path between two vertices in a directed graph. This lesson guides you through managing visited nodes, updating distances, and understanding the algorithm’s time and space complexities to solve graph traversal problems effectively.

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Statement

Given a directed graph of n nodes and two vertices, src and dest, return the length of the shortest path between src and dest. The shortest path will contain the minimum number of edges.

If no path exists between src and dest, return -1.

Constraints:

  • 0≤0 \leq n ≤100\leq 100
  • 0≤0 \leq Node.data
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