static void GraphMethod()
{
Graph <string> graph = new Graph <string>();
var nd = graph.AddNode("North Dakota");
var mt = graph.AddNode("Montana");
var ga = graph.AddNode("Georgia");
var ca = graph.AddNode("California");
var wa = graph.AddNode("Washington");
graph.AddDirectedEdge(wa, nd, 125);
graph.AddUndirectedEdge(ca, mt, 100);
graph.AddDirectedEdge(ga, mt, 72);
graph.AddUndirectedEdge(wa, ca, 11);
graph.AddDirectedEdge(nd, mt, 7);
graph.Print();
var neighbors = graph.GetNeighbors(wa);
var getAll = graph.GetAllVertices();
}
static void GraphExample()
{
Graph <string> graph = new Graph <string>();
Vertex <string> a = graph.AddNode("Washington");
Vertex <string> b = graph.AddNode("Montana");
Vertex <string> c = graph.AddNode("North Dakota");
graph.AddUnDirectedEdge(a, b, 10);
graph.AddUnDirectedEdge(b, c, 5);
graph.AddUnDirectedEdge(c, a, 20);
graph.Print();
Console.WriteLine("=== Just Washington ====");
var vertex = graph.GetVertex("Washington");
var neighbors = graph.GetNeighbors(vertex);
Console.Write($"{vertex.Value}:");
foreach (var item in neighbors)
{
Console.Write($"{item.Vertex.Value}, {item.Weight} => ");
}
Console.WriteLine($"Our Graph has {graph.Size()} vertices");
var listOfVer = graph.GetAllVertices();
int count = 0;
foreach (var item in listOfVer)
{
count++;
Console.WriteLine($"{count}){item.Value}");
}
}
static void Main(string[] args)
{
Graph <int> graph = new Graph <int>();
graph.AddNode(1);
graph.AddNode(2);
graph.AddNode(3);
graph.AddNode(4);
graph.AddNode(5);
graph.AddEdge(1, 2);
graph.AddEdge(1, 3);
graph.AddEdge(1, 4);
graph.AddEdge(2, 3);
graph.AddEdge(2, 5);
graph.AddEdge(3, 5);
graph.AddEdge(3, 4);
graph.AddEdge(4, 5);
Console.WriteLine(string.Join(", ", graph.GetNodes()));
Console.WriteLine(string.Join(", ", graph.BreadthFirst(2)));
}
/// <summary>
/// Test clearing a graph
/// </summary>
static void TestClear()
{
Graph <int> graph = new Graph <int>();
graph.AddNode(4);
graph.AddNode(5);
graph.AddEdge(4, 5);
graph.Clear();
Console.Write("TestClear: ");
string graphString = graph.ToString();
if (graphString.Equals("") &&
graph.Count == 0)
{
Console.WriteLine("Passed");
}
else
{
Console.WriteLine("FAILED!!! Expected: empty string" +
" and 0 Actual: " +
graphString + " and " + graph.Count);
}
}
private static void Graph()
{
Console.WriteLine("Graph!");
Console.WriteLine("Add nodes separated by space");
var nodes = Array.ConvertAll(Console.ReadLine().Split(' '), int.Parse);
var graph = new Graph();
foreach (var node in nodes)
{
graph.AddNode(node);
}
var input = "";
while (input != "quit")
{
PrintMenu();
input = Console.ReadLine();
if (input.StartsWith("q"))
{
break;
}
var split = input.Split(' ');
var source = int.Parse(split[1]);
var dest = int.Parse(split[2]);
switch (split[0])
{
case "edge":
graph.AddEdge(source, dest);
break;
case "dfs":
var list = graph.HasPathDFS(source, dest);
PrintResult("DFS", list);
break;
case "bfs":
Console.WriteLine($"BFS Found: [{graph.HasPathBFS(source, dest)}]");
break;
}
}
}
/// <summary>
/// Test adding an edge to a non-existent node
/// </summary>
static void TestAddEdgeNodeNotFound()
{
Graph <int> graph = new Graph <int>();
graph.AddNode(4);
graph.AddNode(5);
bool success = graph.AddEdge(4, 6);
Console.Write("TestAddEdgeNodeNotFound: ");
string graphString = graph.ToString();
if (graphString.Equals("[Node Value: 4 Neighbors: ]," + "[Node Value: 5 Neighbors: ]") &&
!success)
{
Console.WriteLine("Passed");
}
else
{
Console.WriteLine("FAILED!!! Expected: " +
"[Node Value: 4 Neighbors: ]," +
"[Node Value: 5 Neighbors: ] and false Actual: " +
graphString + " and " + success);
}
}
private void AddNode(object sender, MouseButtonEventArgs e)
{
if (e.ChangedButton == MouseButton.Right)
{
GraphNode node = new GraphNode();
node.Index = Graph.LastIndex + 1;
node.IndexLabel.Content = node.Index;
Canvas.SetLeft(node, e.GetPosition(CanvasGrid).X - node.Width / 2);
Canvas.SetTop(node, e.GetPosition(CanvasGrid).Y - node.Height / 2);
CanvasGrid.Children.Add(node);
Canvas.SetZIndex(node, 1);
Graph.AddNode(node);
}
}
public void CreateGraph()
{
CreateVisualGraph();
Graph = new Graph <NavGraphNode, GraphEdge>();
for (int i = 0; i < Points.Count; i++)
{
NodeInfoComponent nodeInfo = Points[i].GetComponent <NodeInfoComponent>();
Graph.AddNode(new NavGraphNode(nodeInfo.Index, Points[i].transform.position, nodeInfo.ExtraInfo));
for (int j = 0; j < nodeInfo.ConnectedNodes.Count; j++)
{
float distanceBetweenNodes = Vector2.Distance(Points[nodeInfo.Index].transform.position,
Points[nodeInfo.ConnectedNodes[j]].transform.position);
Graph.AddEdge(new GraphEdge(nodeInfo.Index, nodeInfo.ConnectedNodes[j], distanceBetweenNodes),
nodeInfo.Index);
}
}
}
/// <summary>
/// Creates a Connected Cyclic Graph for Testing purposes
/// </summary>
public static void PopulateGraph()
{
Vertex <int> nodeA = graph.AddNode(5);
Vertex <int> nodeB = graph.AddNode(10);
graph.AddUndirectedEdge(nodeA, nodeB);
nodeA = graph.AddNode(7);
graph.AddUndirectedEdge(nodeA, nodeB);
nodeB = graph.AddNode(14);
nodeA = graph.AddNode(-1);
graph.AddUndirectedEdge(nodeA, nodeB);
nodeB = graph.AddNode(1);
graph.AddUndirectedEdge(nodeA, nodeB);
nodeB = graph.AddNode(17);
graph.AddUndirectedEdge(nodeA, nodeB);
}
public static Graph <N, E> LoadGraphFromFile(string path)
{
Graph <N, E> loadedGraph = new Graph <N, E>();
JSONClass loadedJson = JSONNode.LoadFromFile(path).AsObject;
foreach (JSONNode jsonNode in loadedJson["nodes"].Children)
{
N node = JsonUtility.FromJson <N>(jsonNode);
loadedGraph.AddNode(node);
}
foreach (JSONNode jsonNode in loadedJson["edges"].Children)
{
E edge = JsonUtility.FromJson <E>(jsonNode);
loadedGraph.AddEdge(edge, edge.From);
}
return(loadedGraph);
}
/// <summary>
/// Test adding a node to an empty graph
/// </summary>
static void TestAddNodeEmptyGraph()
{
Graph <int> graph = new Graph <int>();
bool success = graph.AddNode(4);
Console.Write("TestAddNodeEmptyGraph: ");
string graphString = graph.ToString();
if (graphString.Equals("[Node Value: 4 Neighbors: ]") &&
graph.Count == 1 &&
success)
{
Console.WriteLine("Passed");
}
else
{
Console.WriteLine("FAILED!!! Expected: [Node Value: 4 " +
"Neighbors: ], 1, and true Actual: " + graphString +
", " + graph.Count + " and " +
success);
}
}
private void pictureBoxFrame_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Right)
{
Graph.AddNode(new Node {
X = e.X, Y = e.Y
});
}
else if (e.Button == MouseButtons.Left)
{
var node = Graph.Nodes.FirstOrDefault(t => t.ContainsPoint(e.X, e.Y));
var selectedNode = SelectedNodes.FirstOrDefault(t => t.ContainsPoint(e.X, e.Y));
if (node != null)
{
node.IsHighlighted = true;
Graph.Nodes.Remove(node);
SelectedNodes.Add(node);
}
else if (selectedNode != null)
{
selectedNode.IsHighlighted = false;
Graph.Nodes.Add(selectedNode);
SelectedNodes.Remove(selectedNode);
}
else
{
_dragging = true;
_dragStartX = e.X;
_dragStartY = e.Y;
_dragEndX = e.X;
_dragEndY = e.Y;
}
}
Draw();
UpdateConnectionsListbox();
}
static void Main()
{
// Create the instance of a graph called myGraph
Graph myGraph = new Graph();
List <string> myNodes = new List <string> {
"A", "B", "C", "D", "E", "F", "G", "H"
};
Console.WriteLine("Creating graph");
// Add nodes names A--H to the graph
foreach (string s in myNodes)
{
myGraph.AddNode(s);
}
myGraph.PrintNodes();
// Add the edges
myGraph.AddEdge("A", "B", 2);
myGraph.AddEdge("A", "C", 10);
myGraph.AddEdge("B", "D", 3);
myGraph.AddEdge("C", "D", 2);
myGraph.AddEdge("B", "E", 9);
myGraph.AddEdge("D", "F", 11);
myGraph.AddEdge("E", "F", 5);
myGraph.AddEdge("C", "G", 8);
myGraph.AddEdge("D", "G", 7);
myGraph.AddEdge("F", "H", 6);
myGraph.AddEdge("G", "H", 1);
Console.WriteLine("Graph created, algorithms next...");
Console.WriteLine("BFS from A...");
myGraph.BFS("A");
Console.WriteLine("Shortest path from A to H");
myGraph.Dijkstra("A", "H");
}
/*
* Format
* x,y,index; x,y,index; x,y,index; x,y,index - Vertexes
* index|index,index,index; index|index,index - Adjency
*/
public static void Load(string file)
{
Graph.Clear();
StreamReader reader = new StreamReader(@file, true);
string line = null;
int index = 0;
while ((line = reader.ReadLine()) != null)
{
if (index == 0) // Vertexes data
{
string[] arr = line.Split(';');
for (int i = 0; i < arr.Length; i++)
{
string[] data = arr[i].Split('.');
if (data.Length < 3)
{
continue;
}
GraphNode node = new GraphNode();
node.Index = int.Parse(data[2]);
node.IndexLabel.Content = node.Index;
Canvas.SetLeft(node, double.Parse(data[0]));
Canvas.SetTop(node, double.Parse(data[1]));
MainWindow.GetInstance().CanvasGrid.Children.Add(node);
Canvas.SetZIndex(node, 1);
Graph.AddNode(node);
}
}
if (index == 1) // Adjency data
{
string[] arr = line.Split(';');
for (int i = 0; i < arr.Length; i++)
{
string[] keyData = arr[i].Split('|');
if (keyData.Length < 2)
{
continue;
}
int key = int.Parse(keyData[0]);
GraphNode node = Graph.GetNode(key);
if (node != null)
{
string[] neighbours = keyData[1].Split(',');
for (int j = 0; j < neighbours.Length - 1; j++)
{
int nKey = int.Parse(neighbours[j]);
GraphNode n = Graph.GetNode(nKey);
if (n != null)
{
GraphEdge edge = Graph.Wire(node, n);
if (edge != null)
{
MainWindow.GetInstance().CanvasGrid.Children.Add(edge.EdgeLine);
Canvas.SetZIndex(edge.EdgeLine, 0);
}
}
}
}
}
}
index++;
}
}
static void Main()
{
var reader = new StreamReader("../../input/2.txt");
Console.SetIn(reader);
var firstInputLineParams = Console.ReadLine()
.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries)
.Select(x => int.Parse(x))
.ToArray();
var numberOfBuildings = firstInputLineParams[0];
var numberOfStreets = firstInputLineParams[1];
var numberOfHospitals = firstInputLineParams[2];
var hospitals = new HashSet<int>();
var readHospitals = Console.ReadLine()
.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries)
.Select(x => int.Parse(x));
foreach (var h in readHospitals)
{
hospitals.Add(h);
}
var graph = new Graph<int>();
var connections = new List<int[]>();
for (int i = 0; i < numberOfStreets; i++)
{
connections.Add(Console.ReadLine()
.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries)
.Select(x => int.Parse(x))
.ToArray());
}
// AddNodesToGraph
foreach (var connection in connections)
{
var fromNode = connection[0];
var toNode = connection[1];
var distance = connection[2];
if (!graph.ContainsNode(fromNode))
{
graph.AddNode(fromNode);
}
if (!graph.ContainsNode(toNode))
{
graph.AddNode(toNode);
}
graph.AddConnection(fromNode, toNode, distance, true);
}
var distanceCalc = new DistanceCalculator<int>();
var minDist = int.MaxValue;
foreach (var hospital in hospitals)
{
var dist = distanceCalc.CalculateDistances(graph, hospital)
.Where(x => !hospitals.Contains(x.Key))
.Sum(x => x.Value);
if (minDist > dist)
{
minDist = dist;
}
}
Console.WriteLine(minDist);
}
static void Main(string[] args)
{
// Undirected and unweighted edges
// Graph<int> graph = new Graph<int>(false, false);
// Node<int> n1 = graph.AddNode(1);
// Node<int> n2 = graph.AddNode(2);
// Node<int> n3 = graph.AddNode(3);
// Node<int> n4 = graph.AddNode(4);
// Node<int> n5 = graph.AddNode(5);
// Node<int> n6 = graph.AddNode(6);
// Node<int> n7 = graph.AddNode(7);
// Node<int> n8 = graph.AddNode(8);
// graph.AddEdge(n1, n2);
// graph.AddEdge(n1, n3);
// graph.AddEdge(n2, n4);
// graph.AddEdge(n3, n4);
// graph.AddEdge(n4, n5);
// graph.AddEdge(n4, n8);
// graph.AddEdge(n5, n6);
// graph.AddEdge(n5, n7);
// graph.AddEdge(n5, n8);
// graph.AddEdge(n6, n7);
// graph.AddEdge(n7, n8);
// ---
// Undirected and weighted edges
// Graph<int> graph = new Graph<int>(false, true);
// Node<int> n1 = graph.AddNode(1);
// Node<int> n2 = graph.AddNode(2);
// Node<int> n3 = graph.AddNode(3);
// Node<int> n4 = graph.AddNode(4);
// Node<int> n5 = graph.AddNode(5);
// Node<int> n6 = graph.AddNode(6);
// Node<int> n7 = graph.AddNode(7);
// Node<int> n8 = graph.AddNode(8);
// graph.AddEdge(n1, n2, 3);
// graph.AddEdge(n1, n3, 5);
// graph.AddEdge(n2, n4, 4);
// graph.AddEdge(n3, n4, 12);
// graph.AddEdge(n4, n5, 9);
// graph.AddEdge(n4, n8, 8);
// graph.AddEdge(n5, n6, 4);
// graph.AddEdge(n5, n7, 5);
// graph.AddEdge(n5, n8, 1);
// graph.AddEdge(n6, n7, 6);
// graph.AddEdge(n7, n8, 20);
// graph.AddEdge(n2, n6, 20);
// graph.AddEdge(n2, n5, 20);
// ---
// Directed and weighted edges
Graph <int> graph = new Graph <int>(true, true);
Node <int> n1 = graph.AddNode(1);
Node <int> n2 = graph.AddNode(2);
Node <int> n3 = graph.AddNode(3);
Node <int> n4 = graph.AddNode(4);
Node <int> n5 = graph.AddNode(5);
Node <int> n6 = graph.AddNode(6);
Node <int> n7 = graph.AddNode(7);
Node <int> n8 = graph.AddNode(8);
graph.AddEdge(n1, n2, 9);
graph.AddEdge(n1, n3, 5);
graph.AddEdge(n2, n1, 3);
graph.AddEdge(n2, n4, 18);
graph.AddEdge(n3, n4, 12);
graph.AddEdge(n4, n2, 2);
graph.AddEdge(n4, n8, 8);
graph.AddEdge(n5, n4, 9);
graph.AddEdge(n5, n6, 2);
graph.AddEdge(n5, n7, 5);
graph.AddEdge(n5, n8, 3);
graph.AddEdge(n6, n7, 1);
graph.AddEdge(n7, n5, 4);
graph.AddEdge(n7, n8, 6);
graph.AddEdge(n8, n5, 3);
Console.WriteLine("Minimum Spanning Tree - Kruskal's Algorithm:");
List <Edge <int> > mstKruskal = graph.MinimumSpanningTreeKruskal();
mstKruskal.ForEach(e => Console.WriteLine(e));
Console.WriteLine("\nMinimum Spanning Tree - Prim's Algorithm:");
List <Edge <int> > mstPrim = graph.MinimumSpanningTreePrim();
mstPrim.ForEach(e => Console.WriteLine(e));
Console.WriteLine("\nShortest Path - Dijkstra's Algorithm:");
List <Edge <int> > path = graph.GetShortestPathDijkstra(n1, n5);
path.ForEach(e => Console.WriteLine(e));
Console.WriteLine("\nColoring the graph:");
int[] colors = graph.Color();
for (int i = 0; i < colors.Length; i++)
{
Console.WriteLine($"Node {graph.Nodes[i].Data}: {colors[i]}");
}
Console.WriteLine("\nDepth-First Search:");
List <Node <int> > dfsNodes = graph.DFS();
dfsNodes.ForEach(n => Console.WriteLine(n));
Console.WriteLine("\nBreath-First Search:");
List <Node <int> > bfsNodes = graph.BFS();
bfsNodes.ForEach(n => Console.WriteLine(n));
}
static void Main(string[] args)
{
Graph.AddNode(new Node(7, "0", new Coordinate(0, 0)));
Graph.AddNode(new Node(7, "1", new Coordinate(50, 100)));
Graph.AddNode(new Node(7, "2", new Coordinate(100, 0)));
Graph.AddNode(new Node(7, "3", new Coordinate(0, 200)));
Graph.AddNode(new Node(7, "4", new Coordinate(250, 200)));
Graph.AddNode(new Node(7, "5", new Coordinate(50, 250)));
Graph.AddNode(new Node(7, "6", new Coordinate(150, 250)));
Graph.AddTwoWayEdge(new Edge(7, Graph.SetOfNodes[0], Graph.SetOfNodes[1]));
Graph.AddTwoWayEdge(new Edge(5, Graph.SetOfNodes[0], Graph.SetOfNodes[3]));
Graph.AddTwoWayEdge(new Edge(8, Graph.SetOfNodes[1], Graph.SetOfNodes[2]));
Graph.AddTwoWayEdge(new Edge(7, Graph.SetOfNodes[1], Graph.SetOfNodes[4]));
Graph.AddTwoWayEdge(new Edge(9, Graph.SetOfNodes[1], Graph.SetOfNodes[3]));
Graph.AddTwoWayEdge(new Edge(5, Graph.SetOfNodes[2], Graph.SetOfNodes[4]));
Graph.AddTwoWayEdge(new Edge(15, Graph.SetOfNodes[3], Graph.SetOfNodes[4]));
Graph.AddTwoWayEdge(new Edge(6, Graph.SetOfNodes[3], Graph.SetOfNodes[5]));
Graph.AddTwoWayEdge(new Edge(8, Graph.SetOfNodes[5], Graph.SetOfNodes[4]));
Graph.AddTwoWayEdge(new Edge(11, Graph.SetOfNodes[5], Graph.SetOfNodes[6]));
Graph.AddTwoWayEdge(new Edge(9, Graph.SetOfNodes[6], Graph.SetOfNodes[4]));
NewGraph.AddNode(new Node(7, "0", new Coordinate(0, 0)));
NewGraph.AddNode(new Node(7, "1", new Coordinate(50, 100)));
NewGraph.AddNode(new Node(7, "2", new Coordinate(100, 0)));
NewGraph.AddNode(new Node(7, "3", new Coordinate(0, 200)));
NewGraph.AddNode(new Node(7, "4", new Coordinate(500, 100)));
NewGraph.AddNode(new Node(7, "5", new Coordinate(50, 250)));
NewGraph.AddNode(new Node(7, "6", new Coordinate(150, 250)));
NewGraph.AddOneWayEdge(new Edge(7, NewGraph.SetOfNodes[0], NewGraph.SetOfNodes[1]));
NewGraph.AddOneWayEdge(new Edge(5, NewGraph.SetOfNodes[0], NewGraph.SetOfNodes[3]));
NewGraph.AddOneWayEdge(new Edge(8, NewGraph.SetOfNodes[1], NewGraph.SetOfNodes[2]));
NewGraph.AddOneWayEdge(new Edge(7, NewGraph.SetOfNodes[1], NewGraph.SetOfNodes[4]));
NewGraph.AddOneWayEdge(new Edge(9, NewGraph.SetOfNodes[1], NewGraph.SetOfNodes[3]));
NewGraph.AddOneWayEdge(new Edge(5, NewGraph.SetOfNodes[2], NewGraph.SetOfNodes[4]));
NewGraph.AddOneWayEdge(new Edge(15, NewGraph.SetOfNodes[3], NewGraph.SetOfNodes[4]));
NewGraph.AddOneWayEdge(new Edge(6, NewGraph.SetOfNodes[3], NewGraph.SetOfNodes[5]));
NewGraph.AddOneWayEdge(new Edge(8, NewGraph.SetOfNodes[5], NewGraph.SetOfNodes[4]));
NewGraph.AddOneWayEdge(new Edge(11, NewGraph.SetOfNodes[5], NewGraph.SetOfNodes[6]));
NewGraph.AddOneWayEdge(new Edge(9, NewGraph.SetOfNodes[4], NewGraph.SetOfNodes[6]));
DepthFirstSearchAlgorithm DFS = new DepthFirstSearchAlgorithm(Graph);
BreadthFirstSearchAlgorithm BFS = new BreadthFirstSearchAlgorithm(Graph);
KruscalAlgorithm KruskalTreeSearch = new KruscalAlgorithm(Graph);
PrimAlgorithm PrimTreeSearch = new PrimAlgorithm(Graph);
BellmanFordAlgorithm BellmanFordPathSearch = new BellmanFordAlgorithm(Graph);
DijkstraAlgorithm DijkstraPathSearch = new DijkstraAlgorithm(Graph);
FloydWarshallAlgorithm FloydWarshallPathSearch = new FloydWarshallAlgorithm(Graph);
JohnsonAlgorithm JohnsonPathSearch = new JohnsonAlgorithm(Graph);
AStarAlgorithm AStarPathSearch = new AStarAlgorithm(Graph);
Console.WriteLine("[Current Graph]\n", Color.Green);
Console.WriteLine("[0] [2]");
Console.WriteLine("|\\ /|");
Console.WriteLine("| \\ 7 8/ |");
Console.WriteLine("| \\ / |5");
Console.WriteLine("|5 \\ / |");
Console.WriteLine("| [1] |");
Console.WriteLine("| 9 / \\7 |");
Console.WriteLine("| / \\ |");
Console.WriteLine("| / 15 \\ |");
Console.WriteLine("[3]--------[4]");
Console.WriteLine(" \\ / \\ ");
Console.WriteLine(" \\ 8/ \\9");
Console.WriteLine(" 6 \\ / \\");
Console.WriteLine(" \\ / \\");
Console.WriteLine(" [5]---------[6]");
Console.WriteLine(" 11\n");
Console.WriteLine("[1 : Depth First Search]\n", Color.Green);
DFS.DepthFirstSearch(Graph.SetOfNodes[0]);
Utilities.PrintResult(DFS.ResultOfSearching);
Console.WriteLine();
Console.WriteLine("[2 : Breadth First Search]\n", Color.Green);
BFS.BreadthFirstSearch(Graph.SetOfNodes[0]);
Utilities.PrintResult(BFS.ResultOfSearching);
Console.WriteLine();
FordFulkersonAlgorithm FordFulkersonStreamSearch = new FordFulkersonAlgorithm(NewGraph);
Console.WriteLine($"[3 : Kruskal Tree Search]\n", Color.Green);
KruskalTreeSearch.FindMinimumSpanningTree();
Utilities.PrintResult(KruskalTreeSearch.MinimumSpanningTree);
Console.WriteLine();
Console.WriteLine($"[4 : Prim Tree Search]\n", Color.Green);
PrimTreeSearch.FindMinimumSpanningTree();
Utilities.PrintResult(PrimTreeSearch.MinimumSpanningTree);
Console.WriteLine();
Console.WriteLine("[5 : Bellman-Ford Path Search]\n", Color.Green);
BellmanFordPathSearch.FindTheShortestPathes(Graph.SetOfNodes[0]);
Utilities.PrintResult(BellmanFordPathSearch.ShortestPathes, Graph.SetOfNodes[0]);
Console.WriteLine("[6 : Dijkstra Path Search]\n", Color.Green);
DijkstraPathSearch.FindTheShortestPathes(Graph.SetOfNodes[0]);
Utilities.PrintResult(DijkstraPathSearch.ShortestPathes, Graph.SetOfNodes[0]);
FloydWarshallPathSearch.FindAllTheShortestPathes();
Console.WriteLine("[7 : Floyd-Warshall Path Search]\n", Color.Green);
Utilities.PrintResult(FloydWarshallPathSearch.MatrixOfTheShortesPathes);
Console.WriteLine();
JohnsonPathSearch.FindAllTheShortestPathes();
Console.WriteLine("[8 : Johnson Path Search]\n", Color.Green);
Utilities.PrintResult(JohnsonPathSearch.MatrixOfTheShortesPathes);
Console.WriteLine();
Console.WriteLine("[9 : Ford-Fulkerson Stream Search]\n", Color.Green);
FordFulkersonStreamSearch.FindMaximumFlowWithDFSRealization(NewGraph.SetOfNodes[0], NewGraph.SetOfNodes[6]);
Console.WriteLine($"Maximum stream capacity is : {FordFulkersonStreamSearch.CapacityOfFlow}");
Console.WriteLine();
Console.WriteLine("[10 : A* Path Search]\n", Color.Green);
AStarPathSearch.FindTheShortesPath(Graph.SetOfNodes[0], Graph.SetOfNodes[6]);
Utilities.PrintResult(AStarPathSearch.ShortesPath);
Console.ReadKey();
}
static void Main(string[] args)
{
Graph <string> graph = new Graph <string>(false, true);
Node <string> nodeB1 = graph.AddNode("B1");
Node <string> nodeB2 = graph.AddNode("B2");
Node <string> nodeB3 = graph.AddNode("B3");
Node <string> nodeB4 = graph.AddNode("B4");
Node <string> nodeB5 = graph.AddNode("B5");
Node <string> nodeB6 = graph.AddNode("B6");
Node <string> nodeR1 = graph.AddNode("R1");
Node <string> nodeR2 = graph.AddNode("R2");
Node <string> nodeR3 = graph.AddNode("R3");
Node <string> nodeR4 = graph.AddNode("R4");
Node <string> nodeR5 = graph.AddNode("R5");
Node <string> nodeR6 = graph.AddNode("R6");
graph.AddEdge(nodeB1, nodeB2, 2);
graph.AddEdge(nodeB1, nodeB3, 20);
graph.AddEdge(nodeB1, nodeB4, 30);
graph.AddEdge(nodeB2, nodeB3, 30);
graph.AddEdge(nodeB2, nodeB4, 20);
graph.AddEdge(nodeB3, nodeB4, 2);
graph.AddEdge(nodeB2, nodeR2, 25);
graph.AddEdge(nodeB4, nodeR4, 25);
graph.AddEdge(nodeR1, nodeR2, 1);
graph.AddEdge(nodeR2, nodeR3, 1);
graph.AddEdge(nodeR3, nodeR4, 1);
graph.AddEdge(nodeR1, nodeR5, 75);
graph.AddEdge(nodeR3, nodeR6, 100);
graph.AddEdge(nodeR5, nodeR6, 3);
graph.AddEdge(nodeR6, nodeB5, 3);
graph.AddEdge(nodeB5, nodeB6, 6);
graph.AddEdge(nodeR6, nodeB6, 10);
Console.WriteLine("Minimum Spanning Tree - Kruskal's Algorithm:");
List <Edge <string> > mstKruskal = graph.MinimumSpanningTreeKruskal();
mstKruskal.ForEach(e => Console.WriteLine(e));
Console.WriteLine("Total cost: " + mstKruskal.Sum(e => e.Weight));
Console.WriteLine("\nMinimum Spanning Tree - Prim's Algorithm:");
List <Edge <string> > mstPrim = graph.MinimumSpanningTreePrim();
mstPrim.ForEach(e => Console.WriteLine(e));
Console.WriteLine("Total cost: " + mstPrim.Sum(e => e.Weight));
}
static void Main(string[] args)
{
Graph <string> graph = new Graph <string>(false, false);
Node <string> nodePK = graph.AddNode("PK");
Node <string> nodeLU = graph.AddNode("LU");
Node <string> nodePD = graph.AddNode("PD");
Node <string> nodeWM = graph.AddNode("WM");
Node <string> nodeMZ = graph.AddNode("MZ");
Node <string> nodeSW = graph.AddNode("SW");
Node <string> nodeMA = graph.AddNode("MA");
Node <string> nodeSL = graph.AddNode("SL");
Node <string> nodeLD = graph.AddNode("LD");
Node <string> nodeKP = graph.AddNode("KP");
Node <string> nodePM = graph.AddNode("PM");
Node <string> nodeZP = graph.AddNode("ZP");
Node <string> nodeWP = graph.AddNode("WP");
Node <string> nodeLB = graph.AddNode("LB");
Node <string> nodeDS = graph.AddNode("DS");
Node <string> nodeOP = graph.AddNode("OP");
graph.AddEdge(nodePK, nodeLU);
graph.AddEdge(nodePK, nodeSW);
graph.AddEdge(nodePK, nodeMA);
graph.AddEdge(nodeLU, nodeSW);
graph.AddEdge(nodeLU, nodeMZ);
graph.AddEdge(nodeLU, nodePD);
graph.AddEdge(nodePD, nodeMZ);
graph.AddEdge(nodePD, nodeWM);
graph.AddEdge(nodeWM, nodeKP);
graph.AddEdge(nodeWM, nodePM);
graph.AddEdge(nodeWM, nodeMZ);
graph.AddEdge(nodeMZ, nodeKP);
graph.AddEdge(nodeMZ, nodeLD);
graph.AddEdge(nodeMZ, nodeSW);
graph.AddEdge(nodeSW, nodeLD);
graph.AddEdge(nodeSW, nodeSL);
graph.AddEdge(nodeSW, nodeMA);
graph.AddEdge(nodeMA, nodeSL);
graph.AddEdge(nodeSL, nodeOP);
graph.AddEdge(nodeSL, nodeLD);
graph.AddEdge(nodeLD, nodeOP);
graph.AddEdge(nodeLD, nodeWP);
graph.AddEdge(nodeLD, nodeKP);
graph.AddEdge(nodeKP, nodeWP);
graph.AddEdge(nodeKP, nodePM);
graph.AddEdge(nodePM, nodeZP);
graph.AddEdge(nodePM, nodeLB);
graph.AddEdge(nodePM, nodeWP);
graph.AddEdge(nodeZP, nodeLB);
graph.AddEdge(nodeWP, nodeDS);
graph.AddEdge(nodeWP, nodeOP);
graph.AddEdge(nodeWP, nodeLB);
graph.AddEdge(nodeLB, nodeDS);
graph.AddEdge(nodeDS, nodeOP);
int[] colors = graph.Color();
for (int i = 0; i < colors.Length; i++)
{
Console.WriteLine($"{graph.Nodes[i].Data}: {colors[i]}");
}
}
static void Main(string[] args)
{
var graph = new Graph();
graph.AddNode("David");
graph.AddNode("John");
graph.AddNode("Peter");
graph.AddEdge("David", "John");
graph.AddEdge("David", "Peter");
graph.AddEdge("John", "Peter");
graph.RemoveEdge("David", "Peter");
graph.RemoveEdge("A", "B");
graph.RemoveNode("John");
graph.Print();
var graph1 = new Graph();
graph1.AddNode("A");
graph1.AddNode("B");
graph1.AddNode("C");
graph1.AddNode("D");
graph1.AddEdge("A", "B");
graph1.AddEdge("B", "D");
graph1.AddEdge("D", "C");
graph1.AddEdge("A", "C");
graph1.TraverseDepthFirstRecursive("A");
graph1.TraverseDepthFirstIterative("A");
graph1.TraverseBreadthFirstIterative("A");
var graph2 = new Graph();
graph2.AddNode("X");
graph2.AddNode("A");
graph2.AddNode("B");
graph2.AddNode("P");
graph2.AddEdge("X", "A");
graph2.AddEdge("X", "B");
graph2.AddEdge("A", "P");
graph2.AddEdge("B", "P");
var nodes = graph2.TopologicalSort();
foreach (var node in nodes)
{
System.Console.WriteLine(node);
}
var graph3 = new Graph();
graph3.AddNode("A");
graph3.AddNode("B");
graph3.AddNode("C");
graph3.AddEdge("A", "B");
graph3.AddEdge("B", "C");
graph3.AddEdge("C", "A");
System.Console.WriteLine(graph3.HasCycle());
var weightedGraph = new WeightedGraph();
weightedGraph.AddNode("A");
weightedGraph.AddNode("B");
weightedGraph.AddNode("C");
weightedGraph.AddEdge("A", "B", 3);
weightedGraph.AddEdge("A", "C", 2);
weightedGraph.Print();
var weightedGraph1 = new WeightedGraph();
weightedGraph1.AddNode("A");
weightedGraph1.AddNode("B");
weightedGraph1.AddNode("C");
weightedGraph1.AddEdge("A", "B", 1);
weightedGraph1.AddEdge("B", "C", 2);
weightedGraph1.AddEdge("A", "C", 10);
var path = weightedGraph1.GetShortestPath("A", "C");
System.Console.WriteLine(path);
var weightedGraph2 = new WeightedGraph();
weightedGraph2.AddNode("A");
weightedGraph2.AddNode("B");
weightedGraph2.AddNode("C");
weightedGraph2.AddEdge("A", "B", 0);
weightedGraph2.AddEdge("B", "C", 0);
weightedGraph2.AddEdge("C", "A", 0);
System.Console.WriteLine(weightedGraph2.HasCycle());
var weightedGraph3 = new WeightedGraph();
weightedGraph3.AddNode("A");
weightedGraph3.AddNode("B");
weightedGraph3.AddNode("C");
weightedGraph3.AddNode("D");
weightedGraph3.AddEdge("A", "B", 3);
weightedGraph3.AddEdge("B", "D", 4);
weightedGraph3.AddEdge("C", "D", 5);
weightedGraph3.AddEdge("A", "C", 1);
weightedGraph3.AddEdge("B", "C", 2);
var tree = weightedGraph3.GetMinimumSpanningTree();
tree.Print();
}
public static void Main(string[] args)
{
string path = "../../../connectionDB.txt";
bool create = true;
Graph g = null;
if (create)
{
g = new Graph();
for (int i = 0; i <= 20; ++i)
{
g.AddNode(new Node(i));
}
int[] line0 = { 0, 1, 2, 3, 4, 5, 6, 7, 8 };
for (int i = 0; i < line0.Length - 1; ++i)
{
g.AddEdge(new Edge(line0[i], line0[i + 1], Color: 0));
}
int[] line1 = { 0, 1, 2, 3, 4, 9, 11, 12, 13 };
for (int i = 0; i < line1.Length - 1; ++i)
{
g.AddEdge(new Edge(line1[i], line1[i + 1], Color: 1));
}
int[] line2 = { 14, 3, 15, 16, 17, 18 };
for (int i = 0; i < line2.Length - 1; ++i)
{
g.AddEdge(new Edge(line2[i], line2[i + 1], Color: 2));
}
int[] line3 = { 0, 3, 5, 8 };
for (int i = 0; i < line3.Length - 1; ++i)
{
g.AddEdge(new Edge(line3[i], line3[i + 1], Color: 3));
}
int[] line4 = { 1, 2, 3, 4, 9, 10, 20, 13, 19, 18 };
for (int i = 0; i < line4.Length - 1; ++i)
{
g.AddEdge(new Edge(line4[i], line4[i + 1], Color: 4));
}
}
else
{
if (File.Exists(path) == false)
{
throw new FileNotFoundException();
}
g = Graph.FromFile(path);
}
//Dijkstra - WORKING :-)
var v = Algo.DijkstraAlgorithm(8, 19, g);
foreach (var p in v)
{
Console.WriteLine(p.Id);
}
if (create)
{
g.SaveToFile(path);
}
}
static void Main(string[] args)
{
string[] lines = new string[]
{
"0011100000111110000011111",
"0011100000111110000011111",
"0011100000111110000011111",
"0000000000011100000011111",
"0000001110000000000011111",
"0001001110011100000011111",
"1111111111111110111111100",
"1111111111111110111111101",
"1111111111111110111111100",
"0000000000000000111111110",
"0000000000000000111111100",
"0001111111001100000001101",
"0001111111001100000001100",
"0001100000000000111111110",
"1111100000000000111111100",
"1111100011001100100010001",
"1111100011001100001000100"
};
bool[][] map = new bool[lines.Length][];
for (int i = 0; i < lines.Length; i++)
{
map[i] = lines[i]
.Select(c => int.Parse(c.ToString()) == 0)
.ToArray();
}
Graph <string> graph = new Graph <string>(false, true);
for (int i = 0; i < map.Length; i++)
{
for (int j = 0; j < map[i].Length; j++)
{
if (map[i][j])
{
Node <string> from = graph.AddNode($"{i}-{j}");
if (i > 0 && map[i - 1][j])
{
Node <string> to = graph.Nodes.Find(n => n.Data == $"{i - 1}-{j}");
graph.AddEdge(from, to, 1);
}
if (j > 0 && map[i][j - 1])
{
Node <string> to = graph.Nodes.Find(n => n.Data == $"{i}-{j - 1}");
graph.AddEdge(from, to, 1);
}
}
}
}
Node <string> source = graph.Nodes.Find(n => n.Data == "0-0");
Node <string> target = graph.Nodes.Find(n => n.Data == "16-24");
List <Edge <string> > path = graph.GetShortestPathDijkstra(source, target);
Console.OutputEncoding = Encoding.UTF8;
for (int row = 0; row < map.Length; row++)
{
for (int column = 0; column < map[row].Length; column++)
{
ConsoleColor color = map[row][column] ? ConsoleColor.Green : ConsoleColor.Red;
if (path.Any(e => e.From.Data == $"{row}-{column}" || e.To.Data == $"{row}-{column}"))
{
color = ConsoleColor.White;
}
Console.ForegroundColor = color;
Console.Write("\u25cf ");
}
Console.WriteLine();
}
Console.ForegroundColor = ConsoleColor.Gray;
}