Question 1.22
22. For the accompanying graph, the minimum total number of edges which constitutes a tour of the graph, starting and ending at the same vertex, and which visits each edge at least once, is _______.
22.
12
22. For the accompanying graph, the minimum total number of edges which constitutes a tour of the graph, starting and ending at the same vertex, and which visits each edge at least once, is _______.
22.
12