public CriticalPath(Graph p_graph)
{
DisToStart = new int[p_graph.VertexCount];
for (int i = 0; i < DisToStart.Length; i++)
{
DisToStart[i] = int.MaxValue;
}
Dfo = new DepthFirstOrder(p_graph);
Dfo.DFO();
DisToStart[0] = 0;
for (int i = 1; i < Dfo.ReversePostOrder.Count; i++)
{
int from = Dfo.SearchFrom[i];
DisToStart[i] = DisToStart[from] + p_graph.GetWeight(from, i);
}
criticalPathDis = DisToStart.Max();
int maxIndex = DisToStart.ToList().IndexOf(criticalPathDis);
do
{
criticalPath.Push(maxIndex);
maxIndex = Dfo.SearchFrom[maxIndex];
} while (maxIndex >= 0);
}
static void TestDiGraph()
{
Graph graph = new DiGraph();
var random = new Random();
Stopwatch watch = new Stopwatch();
watch.Restart();
graph.AddEdge(0, 1);
int toAdd;
int from;
for (int i = 2; i < 10000; i++)
{
toAdd = i;
from = random.Next(0, i);
graph.AddEdge(from, toAdd);
}
Console.WriteLine("DiGraph: " + watch.ElapsedMilliseconds);
Console.WriteLine("DFP in DiGraph");
watch.Restart();
DepthFirstSearch dfp = new DepthFirstSearch(graph);
dfp.DFS(0);
Console.WriteLine("DFP in: " + watch.ElapsedTicks);
//dfp.OutputOrder();
dfp.OutputPath(5000);
Console.WriteLine("BFP in DiGraph");
watch.Restart();
BreadthFirstSearch bfp = new BreadthFirstSearch(graph);
bfp.Execute(0);
Console.WriteLine("BFP in: " + watch.ElapsedTicks);
//bfp.OutputOrder();
bfp.OutputPath(5000);
Console.WriteLine("Cycle in DiGraph");
watch.Restart();
GraphCycle cycle = new GraphCycle(graph);
cycle.CS();
Console.WriteLine("CS in: " + watch.ElapsedTicks);
cycle.OutputCycle();
Console.WriteLine("Topo sort in DiGraph");
watch.Restart();
DepthFirstOrder order = new DepthFirstOrder(graph);
order.DFO();
Console.WriteLine("Topo sort in: " + watch.ElapsedTicks);
//order.OutputReversePost();
}
