CS 1501 Homework 3

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Details: A weighted graph will be given that represents locations and direct connections between locations. Each location will be represented by a vertex and each direct connection will be represented by a weighted edge where the weight represents the price including both departure and return trips.

The weighted graph will be stored as a WeightedGraph object which contains an adjacency list. The expected output is a set of locations having type Set.

Problems: First, you will implement a Breadth First Search (BFS) to determine all possible destinations that could be reached ignoring the budget. Second, you will implement a form of Dijkstra’s algorithm to build a Shortest Path Tree (SPT) and then determine all possible destinations that can be reached while staying under budget.

Problem 1 (20 points): In BFS.java, fill in the getReachableSet method. This method will take in a WeightedGraph along with a start Location. It will apply Breadth First Search to compute the set of all reachable locations from the starting location.

Problem 2 (30 points): In Dijkstra.java, fill in the getDestinationSet method. This method will take in a WeightedGraph along with a start Location and a budget. It will apply Dijkstra’s algorithm to compute the set of all possible destinations that could be reached from the starting location while staying within the budget.