We can easily find the shortest path using the Floyd-Warshall algorithm, but we do not get the actual path to go from node X to Y. This is because the Floyd-Warshall algorithm does the calculation for the distance or cost and does not store the actual path for the minimum cost. For example, using Google Maps, we can always find a route to our destination from any given location. Google Maps can show us the best route as regards the distance, time of travel, or other factors. This is a perfect example of single source shortest path algorithm usage. There are many algorithms to find the solution for a single source shortest path problem; however, Dijkstra's shortest path algorithm is the most popular one. There are many ways to implement Dijkstra's algorithm, such as using Fibonacci heaps, min-heaps, priority...
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