Dump of graph (numVert = 5, numEdge = 7, m_cap = 20)
m_re: 0 3 6 8 10 14 
m_nz: 15 13 14 15 16 12 16 17 13 11 14 12 17 11 
m_ci: 1 3 4 0 2 4 1 4 0 4 0 1 2 3 

The neighbors of vertex 4 are:
0 1 2 3 

The edges in the graph are:
(0, 1, 15) (0, 3, 13) (0, 4, 14) (1, 2, 16) (1, 4, 12) (2, 4, 17) (3, 4, 11)