Top "Shortest-path" questions

Shortest path problems are problems addressing finding the shortest path from a single source to a target source, usually in a graph.

Using BFS for Weighted Graphs

I was revising single source shortest path algorithms and in the video, the teacher mentions that BFS/DFS can't be …

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Dijkstra vs. Floyd-Warshall: Finding optimal route on all node pairs

I am reading up on Dijkstra's algorithm and the Floyd-Warshall algorithm. I understand that Dijkstra's finds the optimal route from …

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What are some good methods to finding a heuristic for the A* algorithm?

You have a map of square tiles where you can move in any of the 8 directions. Given that you have …

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The best shortest path algorithm

What is the difference between the "Floyd-Warshall algorithm" and "Dijkstra's Algorithm", and which is the best for finding the shortest …

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Shortest path to transform one word into another

For a Data Structures project, I must find the shortest path between two words (like "cat" and "dog"), changing only …

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QuickGraph Dijkstra example

I have an AdjacencyGraph<string, Edge<string>> which I would like to run AlgorithmExtensions.ShortestPathsDijkstra on, …

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Dijkstra algorithm with min-priority queue

I'm trying to implement the dijkstra algorithm with priority queue, but I can't understand how it works. I read many …

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What are the applications of the shortest-path-algorithm?

The shortest path between nodes in a graph can be found by several algorithms (Dikstra, A-star, etc). But what applications …

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Time complexity of Floyd Warshall algorithm

The Skiena's book of algorithm contains the following explaination of Floyd Warshall algorithm: floyd(adjacency_matrix *g) { int i,j; /* …

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How to find all vertex-disjoint paths in a graph?

Suppose there are 3 target nodes in a graph. A vertex-disjoint path means there is not any same node except the …

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