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Possible number of labelled simple Directed, Pseudo and Multigarphs exist having 2 vertices?

(a) 3, Infinite, 4

(b) 4, 3, Infinite

(c) 4, Infinite, infinite

(d) 4, Infinite, Infinite

My enquiry is from Multigraph and Hypergraph in chapter Graph of Data Structures & Algorithms I

I had been asked this question by my school principal while I was bunking the class.

1 Answer

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Best answer
The correct option is (d) 4, Infinite, Infinite

Best explanation: MultiGraphs and PseudoGraphs may have infinite number of edges, while 4 possible simple graphs exist.

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