H=Graph([(0, 1), (0, 3), (0, 4), (0, 5), (1, 2), (1, 3), (1, 4), (1, 6), (2, 5), (3, 4), (5, 6)])
H.girth()
4 4 |
H.is_triangle_free()
False False |
H.show()
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