public static void GetSalesman()
{
var graph = Initializing.CreateGraph(@"./_Third.txt");
var matrix = Initializing.CreateMatrix(@"./_Third.txt");
BnB_matrix brunchAndBound = new BnB_matrix();
var edges = brunchAndBound.BranchAndBound(matrix);
System.Console.WriteLine("\n");
ConsolePrint.HeaderPrint("Salesman problem");
ConsolePrint.PrintGraph(graph);
ConsolePrint.PrintPath(edges);
}
public static void GetBoruvka()
{
var graph = Initializing.CreateGraph(@"./boruvkas.txt");
var matrix = Initializing.CreateMatrix(@"./boruvkas.txt");
var graphToReturn = Boruvkas.BoruvkasSolve(graph);
System.Console.WriteLine("\n");
MyPrinter.HeaderPrint("Minimum spanning tree by Boruvka's method");
MyPrinter.PrintMatrix(matrix, "Started instance:");
System.Console.WriteLine($"\t Edges count in started instance: {graph.EdgesCount}");
System.Console.WriteLine($"\t Nodes count in started instance: {graph.VerticesCount}\n");
// MyPrinter.PrintGraph(graph, "Started graph:");
MyPrinter.PrintGraph(graphToReturn, "New minimized graph:");
}
public static void GetSalesman()
{
var graph = Initializing.CreateGraph(@"./salesman.txt");
var matrix = Initializing.CreateMatrix(@"./salesman.txt");
System.Console.WriteLine("\n");
MyPrinter.HeaderPrint("Salesman problem\n");
MyPrinter.PrintMatrix(matrix, "Matrix instance\n");
BranchAndBoundSolver brunchAndBound = new BranchAndBoundSolver();
var edges = brunchAndBound.BranchAndBound(matrix);
// MyPrinter.PrintGraph(graph, "Graph instance");
MyPrinter.PrintPath(edges);
}
public static void GetMaxFlowByFF()
{
var graph = Initializing.CreateGraph(@"./flow.txt");
var matrix = Initializing.CreateMatrix(@"./flow.txt");
FlowFinder FlowFinder = new FlowFinder(graph);
var flow = FlowFinder.FindMaximumFlow();
var maxFlow = flow.Where(e => e.Edge.Destination == graph.Nodes.Last().Id).Sum(x => x.Flow);
System.Console.WriteLine("\n");
MyPrinter.HeaderPrint("Max flow");
MyPrinter.PrintMatrix(matrix, "Matrix instance");
// MyPrinter.PrintGraph(graph, "Edges instance");
MyPrinter.PrintFlow(graph.Edges, flow.ToArray());
System.Console.WriteLine($"\n\t\tmax flow = {maxFlow}\n\n");
}
public async Task <IActionResult> GetSalesman()
{
var graph = Initializing.CreateGraph(@"../Graph/_SalesmanProblem.txt");
var matrix = Initializing.CreateMatrix(@"../Graph/_SalesmanProblem.txt");
BnB_matrix brunchAndBound = new BnB_matrix();
var edges = brunchAndBound.BranchAndBound(matrix);
var graphToReturn = (Graph)graph.Clone();
graphToReturn.EdgesCount = edges.Length;
graphToReturn.Edges = edges;
List <Graph> listGraph = new List <Graph>
{
graph,
graphToReturn
};
return(Ok(listGraph));
}
public static void GetPostman()
{
var graph = Initializing.CreateGraph(@"./postman.txt");
var matrix = Initializing.CreateMatrix(@"./postman.txt");
Graph newGraph = new Graph();
if (!Postman.IsEvenDegree(graph.Nodes))
{
var oddNodes = OddFinder.FindOddNodes(graph.Nodes);
newGraph = Postman.PairingOddVertices(graph, oddNodes);
}
var eulerianPath = Postman.FindEulerianPath(newGraph);
System.Console.WriteLine("\n");
MyPrinter.HeaderPrint("Chinese postman problem");
MyPrinter.PrintMatrix(matrix, "Matrix instance\n");
// MyPrinter.PrintGraph(graph, "Graph instance: Edges");
MyPrinter.ShowAdditionalEdges(graph, newGraph);
MyPrinter.PrintNodes(graph.Nodes, newGraph.Nodes);
MyPrinter.PrintPath(eulerianPath.ToArray());
}
public async Task <IActionResult> GetSalesman()
{
var graph = Initializing.CreateGraph(@"../Graph/_SalesmanProblem.txt");
var matrix = Initializing.CreateMatrix(@"../Graph/_SalesmanProblem.txt");
BnB_matrix brunchAndBound = new BnB_matrix();
var edges = brunchAndBound.BranchAndBound(matrix);
var graphToReturn = (Graph)graph.Clone();
// foreach (var item in edges)
// {
// if (graphToReturn.Edges.Any(x => x.Source == item.Source && x.Destination == item.Destination))
// {
// continue;
// }
// else if (graphToReturn.Edges.Any(x => x.Destination == item.Source && x.Source == item.Destination))
// {
// int temp = 0;
// temp = item.Source;
// item.Source = item.Destination;
// item.Destination = temp;
// }
// }
graphToReturn.EdgesCount = edges.Length;
graphToReturn.Edges = edges;
List <Graph> listGraph = new List <Graph>
{
graph,
graphToReturn
};
return(Ok(listGraph));
}
