Vector quiz doubt 2

pls explain question 9?

hey @Shreya-Gupta-2383169445069382 can you please share the 9th question.

Which of the following can be used to store a simple undirected graph with N nodes?

@Shreya-Gupta-2383169445069382
you are given an undirected graph with N nodes, now you have to store which nodes have edges between them the question asks which data structure is suitable for that.

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