frequently in planning
for the distribution of
goods and services from several supply locations to several demand locations.
Typically, the quantity of goods available at each supp
A directed graph G or digraph (or simply graph) consists of two things:
A set V whose elements are called vertices, nodes, or points.
A set E of ordered pairs (u, v) of vertices called arcs or directed edges or
We will write
Eulerian and Hamiltonian
Eulerian paths and cycles
Question: Which of the two pictures below can be drawn in one go
without lifting your pen from the paper?
Definition: A trail is a walk with no repeated edges.
Definition: An Eulerian trail in a (m