public AcyclicSP(EdgeWeightedDigraph g, int s)
{
this._g = g;
this._s = s;
this.DistTo = new double[g.V()];
this._edgeTo = new DirectedEdge[g.V()];
for (int v = 0; v < g.V(); v++)
this.DistTo[v] = double.PositiveInfinity;
this.DistTo[s] = 0d;
Topological top = new Topological(g);
foreach (int v in top.Order)
foreach (DirectedEdge e in g.Adj[v])
this.relax(e);
}
public AcyclicLP(EdgeWeightedDigraph g, int s)
{
this._g = g;
this._s = s;
this.DistTo = new double[g.V()];
this._edgeTo = new DirectedEdge[g.V()];
for (int v = 0; v < g.V(); v++)
this.DistTo[v] = double.NegativeInfinity;
this.DistTo[s] = 0d;
Topological top = new Topological(g);
if (top.Order == null)
throw new Exception("Digraph is not acyclic.");
foreach (int v in top.Order)
foreach (DirectedEdge e in g.Adj[v])
this.relax(e);
}