Given a directed graph, getZeroArcs returns the list
of arcs with zero weight. Removes other arcs by assign them
infinite value.
Usage
getZeroArcs(nodes, arcs)
Arguments
nodes
vector containing the nodes of the graph,
identified by a number that goes from $1$ to the
order of the graph.
arcs
matrix with the list of arcs of the graph.
Each row represents one arc. The first two columns
contain the two endpoints of each arc and the third
column contains their weights.
Value
The getZeroArcs function returns a matrix with the
list of zero weight arcs of the graph.