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October 30th, 2008, 08:27 AM  #1 
Joined: Dec 2007 Posts: 37  Dijkstra's algorithm
Hello everybody. I have just one question, and it's a simple one. Does anybody knows an alternative to the widespread Dijkstra's algorithm? Is there such an algorithm at all?

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November 1st, 2008, 05:51 PM  #2 
Joined: Dec 2007 Posts: 138  Re: Dijkstra's algorithm
The BellmanFord Algorithm is also very common. It has the added bonus that it detects negativeweight cycles (and halts if one exists). A* search is a more general algorithm Dijkstra's algorithm is a special case (when "h(x) = 0"). CLRS chapter 25 gives the FloydWarshall Algorithm which computes the minimum path for all pairs of vertices in the graph. I don't know anything about the last algorithm, but I can answer basic questions about the other three... Does that help? Edit: By the way CLRS is a comprehensive and pretty standard algorithms text. It doesn't have beautiful flowing prose, but it has pretty much every important algorithm and datastructure. 

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