Question 2 - Graph Theory
Let G be a simple, undirected, and connected graph with n vertices. Consider the following statements:
A. If (u, v) is a bridge in G, then at least one of the vertices u or v is a cut vertex.
B. The maximum number of bridges that G can have is n-1.
C. If G is a tree with more than 2 vertices and with f leaves, then the minimum number of edges that need to be added so that there are no bridges is ⌈f/2⌉.
Select the alternative that identifies the incorrect statements:
a) A and B
b) B and C
c) Only A
d) Only C
e) None of the above
Original Idea by Sergio Sanchez
Very nice question, but very difficult. How do we know that ceil(f/2) is the minimum in statement (C)?
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