Given an *undirected* graph g with four vertices, I add edges by
g.add_edge_list([(0, 1), (0, 2), (0, 3), (1, 0), (1, 2), (1, 3), (2, 0),
(2, 1), (2, 3), (3, 0), (3, 1), (3, 2)]) .
When calling g.num_edges() the result is 12. In my opinion it should be
6, as the graph is undirected? Any ideas?
--
Christopher Morris
Algorithm Engineering,
Department of Computer Science,
TU Dortmund University
https://ls11-www.cs.tu-dortmund.de/staff/morris
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