private void TraverseGraph(DAG DAGgraph, IList <IList <int> > solutions, IList <int> currentSol, int index)
{
if (DAGgraph.Vertices[index].Edges.Count == 0)
{
solutions.Add(currentSol);
currentSol = null;
return;
}
List <int> edges = DAGgraph.Vertices[index].Edges;
foreach (int edge in edges)
{
List <int> newSolution = new List <int>();
foreach (int e in currentSol)
{
newSolution.Add(e);
}
newSolution.Add(edge);
TraverseGraph(DAGgraph, solutions, newSolution, edge);
}
}
public IList <IList <int> > AllPathsSourceTarget(int[][] graph)
{
int vertices = graph.Length;
//int edges = graph.GetUpperBound(1);
DAG DAGgraph = new DAG(vertices);
int index = 0;
foreach (int[] subArray in graph)
{
Vertex Vertex = new Vertex();
// sort sub Array
foreach (int item in subArray)
{
Vertex.Edges.Add(item);
}
DAGgraph.Vertices[index++] = Vertex;
}
IList <IList <int> > results = new List <IList <int> >();
IList <int> currentSol = new List <int>();
currentSol.Add(0);
TraverseGraph(DAGgraph, results, currentSol, 0);
return(results);
}