How to check if there is an edge between two nodes in an undirected graph?

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Waseem AL Aqqad
Waseem AL Aqqad 2022-5-20
回答： Pratibha Chaudhary 2022-11-9
How can I check if any two nodes in an undirected graph are connected via an edge or not, please? in other words, Are they neighbors or not? Thanks!

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Christine Tobler
Christine Tobler 2022-5-20
Call findedge(g, node1, node2). If there is no edge connecting these nodes, the output is zero. Otherwise, the output is the index into the Edges table of the connecting edge.

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Pratibha Chaudhary
Pratibha Chaudhary 2022-11-9
findedge(g, node1, node2).

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