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Buzz1982

distance b/w 2 nodes in undirected graph

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Hi, Is there any algorithm that finds the distance b/w 2 arbitrarily chosen nodes in an undirected graph. Please point me to such a resource. Thanks Bye

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You could start with BFS.
But for common game-related needs, where you want to look for a distance of two points on a map, A-star is usually a better choice.

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Breadth-first search if unweighted.
Dijkstra if weighted with no negative weights.
Bellman-Ford if weighted with negative weights.

All these search the minimum distance between a node and all other nodes, but you can stop them as soon as the distance to the second node is known.

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