public static void InsightDFS(int vertex, bool[] used, AdjacencyMatrix graph)
{
used[vertex] = true;
for (int i = 0; i < graph.NumberVertexes; i++)
if (graph.GetWeigth(vertex, i) != Constants.NotConnected && !used[i])
{
used[i] = true;
InsightDFS(i, used, graph);
}
used[vertex] = true;
}
public static bool DFS(AdjacencyMatrix graph, int vertex1, int vertex2)
{
int numberVertexes = graph.NumberVertexes;
bool[] used = new bool[numberVertexes + 1];
for (int i = 1; i <= numberVertexes; i++)
{
used[i] = false;
}
InsightDFS(vertex1, used, graph);
return used[vertex2];
}
static void Main(string[] args)
{
var matrix = new AdjacencyMatrix(5);
matrix.Connect(1, 2);
matrix.Connect(2, 3);
matrix.Connect(3, 4);
matrix.Connect(2, 4);
matrix.Connect(2, 0);
matrix.Disconnect(1, 2);
Console.Write(matrix.ToString());
}
public IAdjacency Clone()
{
AdjacencyMatrix adjacencyMatrix = (AdjacencyMatrix)this.MemberwiseClone();
adjacencyMatrix.Adj = new int[V, V];
for (int i = 0; i < V; i++)
{
for (int j = 0; j < V; j++)
{
adjacencyMatrix.Adj[i, j] = this.Adj[i, j];
}
}
return(adjacencyMatrix);
}
public static bool BFS(AdjacencyMatrix graph, int vertex1, int vertex2)
{
Queue<int> queue = new Queue<int>();
int numberVertexes = graph.NumberVertexes;
queue.Enqueue(vertex1);
while (queue.Count != 0)
{
int vertex = queue.Dequeue();
for (int i = 0; i < numberVertexes; i++)
if (graph.GetWeigth(vertex, i) != Constants.NotConnected)
{
if (i == vertex2)
{
return true;
}
queue.Enqueue(i);
}
}
return false;
}
/// <summary>
/// 求一个图的反图
/// </summary>
/// <returns></returns>
public IAdjacency Reverse()
{
AdjacencyMatrix reverse = (AdjacencyMatrix)this.Clone();
reverse._inDgree = new int[V];
reverse._outDegree = new int[V];
reverse.Adj = new int[V, V];
for (int i = 0; i < V; i++)
{
for (int j = 0; j < V; j++)
{
if (this.Adj[i, j] == 1)
{
reverse.Adj[j, i] = 1;
reverse._inDgree[i]++;
reverse._outDegree[j]++;
}
}
}
return(reverse);
}
//Create a graph
// A(0)
// |
// |
// B(1)------H(7)
// | |
// | |
// C(2)------E(4)------G(6)
// | |
// | |
// D(3) F(5)
static void Main(string[] args)
{
AdjacencyMatrix aM = new AdjacencyMatrix(8);
aM.addEdge(0, 1);
aM.addEdge(1, 2);
aM.addEdge(1, 7);
aM.addEdge(2, 4);
aM.addEdge(7, 4);
aM.addEdge(4, 6);
aM.addEdge(2, 3);
aM.addEdge(4, 5);
Vertex A = new Vertex('A');
Vertex B = new Vertex('B');
Vertex C = new Vertex('C');
Vertex D = new Vertex('D');
Vertex E = new Vertex('E');
Vertex F = new Vertex('F');
Vertex G = new Vertex('G');
Vertex H = new Vertex('H');
Vertex[] vertexList = new Vertex[8] {
A, B, C, D, E, F, G, H
};
//CommonGraph cG = new CommonGraph(aM, vertexList, 8);
TraversalHelper.AllTraversal(aM, vertexList, 8);
// 5 4
// / \ / \
// / \ / \
// v v v v
//2 0 1
// \ ^
// \ /
// \ /
// \ /
// \ /
// v /
// 3
// Create a graph given
// in the above diagram
TopologicalSort g = new TopologicalSort(6);
g.AddEdge(5, 2);
g.AddEdge(5, 0);
g.AddEdge(4, 0);
g.AddEdge(4, 1);
g.AddEdge(2, 3);
g.AddEdge(3, 1);
Console.WriteLine("Following is a Topological "
+ "sort of the given graph");
// Function Call
g.TopologicalSorting();
Console.ReadLine();
}
static void MainForGraph(string[] args)
{
AdjacencyMatrix adjcencyMatrix = new AdjacencyMatrix("../../../g2.txt");
AdjacencyList adjacencyList = new AdjacencyList("../../../g2.txt");
Console.WriteLine(adjcencyMatrix);
Console.WriteLine(adjacencyList);
DfsGraph dfsMatrix = new DfsGraph(adjcencyMatrix);
dfsMatrix.PreOrder.ForEach(Console.WriteLine);
Console.WriteLine("----------------华丽的分割线----------------");
dfsMatrix.PostOrder.ForEach(Console.WriteLine);
Console.WriteLine(dfsMatrix.ConnectedComponentCount);
PrintListArray(dfsMatrix.ConnectedComponents());
Console.WriteLine("----------------华丽的分割线----------------");
DfsGraph dfsList = new DfsGraph(adjacencyList);
dfsList.PreOrder.ForEach(Console.WriteLine);
Console.WriteLine("----------------华丽的分割线----------------");
dfsList.PostOrder.ForEach(Console.WriteLine);
Console.WriteLine(dfsList.ConnectedComponentCount);
PrintListArray(dfsList.ConnectedComponents());
//Console.WriteLine("----------------华丽的分割线----------------");
//SingleSourcePath singleSourcePath=new SingleSourcePath(adjcencyMatrix,0,6);
//foreach (var i in singleSourcePath.Path())
//{
// Console.Write(i+" ");
//}
Console.WriteLine();
Console.WriteLine("----------------华丽的分割线----------------");
CircleDetection circleDetection = new CircleDetection(adjcencyMatrix);
Console.WriteLine(circleDetection.IsHaveCircle);
Console.WriteLine("----------------华丽的分割线----------------");
BinaryPartitionDetection binaryPartitionDetection = new BinaryPartitionDetection(adjcencyMatrix);
Console.WriteLine(binaryPartitionDetection.IsBinaryPartition);
BfsGraph bfsGraph = new BfsGraph(adjcencyMatrix);
bfsGraph.Order.ForEach(Console.WriteLine);
//Console.WriteLine("----------------华丽的分割线----------------");
//SingleSourcePathUseBfs singleSourcePathUseBfs=new SingleSourcePathUseBfs(adjcencyMatrix,0);
//foreach (var i in singleSourcePathUseBfs.Path(6))
//{
// Console.Write(i+" ");
//}
//Console.WriteLine();
//Console.WriteLine(singleSourcePathUseBfs.MinDistance(6));
//Console.WriteLine("----------------华丽的分割线----------------");
//int[][] grid = new int[4][];//[[1,1,0,0,0],[1,1,0,0,0],[0,0,0,1,1],[0,0,0,1,1]]
//grid[0] =new int[]{ 1, 1, 0, 0, 0 };
//grid[1]=new int[]{ 1, 1, 0, 0, 0 };
//grid[2] = new int[] { 0, 0, 0, 1,1 };
//grid[3] = new int[] { 0, 0, 0, 1, 1 };
//Solution solution=new Solution();
//Console.WriteLine(solution.MaxAreaOfIsland(grid));
//Console.WriteLine("----------------华丽的分割线----------------");
//int[][] grid = new int[4][];//[[1,1,0,0,0],[1,1,0,0,0],[0,0,0,1,1],[0,0,0,1,1]]
//grid[0] = new int[] { 1, 1, 0, 0, 0 };
//grid[1] = new int[] { 1, 1, 0, 0, 0 };
//grid[2] = new int[] { 0, 0, 0, 1, 1 };
//grid[3] = new int[] { 0, 0, 0, 1, 1 };
//Solution1 solution = new Solution1();
//Console.WriteLine(solution.MaxAreaOfIsland(grid));
Console.WriteLine("----------------华丽的分割线----------------");
Solution3 solution3 = new Solution3();
int[][] grid = new int[3][]
{
new int[3] {
0, 0, 0
},
new int[3] {
1, 1, 0
},
new int[3] {
1, 1, 0
}
};
Console.WriteLine(solution3.ShortestPathBinaryMatrix(grid));
Console.WriteLine("----------------华丽的分割线----------------");
Bulket bulket = new Bulket();
bulket.WaterPullze().Path().ForEach(t => Console.WriteLine(t[0] + "," + t[1]));
Console.WriteLine("----------------华丽的分割线----------------");
FarmerAcrossTheRiver farmerAcrossTheRiver = new FarmerAcrossTheRiver();
farmerAcrossTheRiver.AcrossTheRiver().ForEach(_ =>
{
Console.WriteLine(_[0] + "," + _[1] + "," + _[2] + "," + _[3]);
});
Console.WriteLine("----------------华丽的分割线----------------");
Bridge bridge = new Bridge();
bridge.FindBridge(adjcencyMatrix);
bridge.BridgeEdge.ForEach(Console.WriteLine);
Console.WriteLine("----------------华丽的分割线----------------");
CutPoint cutPoint = new CutPoint();
cutPoint.FindCutPoint(adjcencyMatrix);
foreach (var cutPointCutPoint in cutPoint.CutPoints)
{
Console.Write(cutPointCutPoint + " ");
}
Console.WriteLine();
Console.WriteLine("----------------华丽的分割线----------------");
HamiltonLoop hamiltonLoop = new HamiltonLoop();
hamiltonLoop.FindHamiltonPath(adjcencyMatrix);
hamiltonLoop.Path().ForEach(Console.WriteLine);
Console.WriteLine();
Console.WriteLine("----------------华丽的分割线----------------");
HamiltonPath hamiltonPath = new HamiltonPath(adjcencyMatrix, 0);
foreach (var i in hamiltonPath.Path())
{
Console.Write(i + " ");
}
Console.WriteLine();
Console.WriteLine("----------------华丽的分割线----------------");
// [[1,0,0,0],[0,0,0,0],[0,0,2,-1]]
DiferencePath diferencePath = new DiferencePath();
int[][] s = new int[3][] { new int[] { 1, 0, 0, 0 }, new int[] { 0, 0, 0, 0 }, new int[] { 0, 0, 2, -1 } };
Console.WriteLine(diferencePath.UniquePathsIII(s));
Console.WriteLine("----------------华丽的分割线----------------");
EulerLoop eulerLoop = new EulerLoop(adjcencyMatrix);
eulerLoop.EulerLoopPath().ForEach(Console.WriteLine);
Console.WriteLine("----------------华丽的分割线----------------");
WeightGraph weightGraph = new WeightGraph("../../../mincreatetree.txt");
MinCreateTreeUseKruskal minCreateTreeUseKruskal = new MinCreateTreeUseKruskal(weightGraph);
minCreateTreeUseKruskal.Result().ForEach(Console.WriteLine);
Console.WriteLine("----------------华丽的分割线----------------");
MinCreateTreeUsePrim minCreateTreeUsePrim = new MinCreateTreeUsePrim(weightGraph);
minCreateTreeUsePrim.Result().ForEach(Console.WriteLine);
Console.WriteLine("----------------华丽的分割线----------------");
WeightGraph weightGraph1 = new WeightGraph("../../../dijkstra.txt");
Dijkstra dijkstra = new Dijkstra(weightGraph1, 0);
Console.WriteLine(dijkstra.Distance(4));
dijkstra.Path(4).ForEach(Console.WriteLine);
Console.WriteLine("----------------华丽的分割线----------------");
Bellman_Ford bellmanFord = new Bellman_Ford(weightGraph1, 0);
Console.WriteLine(bellmanFord.Distance(4));
bellmanFord.Path(4).ForEach(Console.WriteLine);
Console.WriteLine("----------------华丽的分割线----------------");
Floyed floyed = new Floyed(weightGraph1);
Console.WriteLine(floyed.ShortedLength(0, 4));
floyed.Path(0, 4).ForEach(Console.WriteLine);
Console.WriteLine("----------------华丽的分割线----------------");
IAdjacency adjacency = new AdjacencyList("../../../directed.txt", true);
DirectedCircleDectection directedCircleDectection = new DirectedCircleDectection(adjacency);
Console.WriteLine(directedCircleDectection.IsHaveCircle);
Console.WriteLine("----------------华丽的分割线----------------");
ToopSort toopSort = new ToopSort(adjacency);
Console.WriteLine(toopSort.IsHaveCircle);
toopSort.Result.ForEach(Console.WriteLine);
Console.WriteLine("----------------华丽的分割线----------------");
ToopSortByDfs toopSortByDfs = new ToopSortByDfs(adjacency);
toopSortByDfs.Result.ForEach(Console.WriteLine);
Console.WriteLine("----------------华丽的分割线----------------");
IAdjacency stronglyTest = new AdjacencyList("../../../stronglyconnectedweight.txt", true);
StronglyConnectedWeight stronglyConnectedWeight = new StronglyConnectedWeight(stronglyTest);
Console.WriteLine(stronglyConnectedWeight.StronglyConnectedWeightCount);
for (int i = 0; i < stronglyConnectedWeight.StronglyConnectedComponent.Length; i++)
{
Console.Write(i + ":");
foreach (var v in stronglyConnectedWeight.StronglyConnectedComponent[i])
{
Console.Write(v + " ");
}
Console.WriteLine();
}
Console.WriteLine("----------------华丽的分割线----------------");
WeightGraph edmondsGraph = new WeightGraph("../../../edmondskarp.txt", true);
Edmonds_Karp edmondsKarp = new Edmonds_Karp(edmondsGraph, 0, 3);
Console.WriteLine(edmondsKarp.MaxFlow);
Console.WriteLine(edmondsKarp.FlowInTwoVertex(0, 1));
Console.WriteLine("----------------华丽的分割线----------------");
AdjacencyList twoPartite = new AdjacencyList("../../../twopartitegraphmatch.txt");
BinaryPartGraphMatch binaryPartGraphMatch = new BinaryPartGraphMatch(twoPartite);
Console.WriteLine(binaryPartGraphMatch.MaxMatch);
Console.WriteLine(binaryPartGraphMatch.IsPerfectMatch);
Console.WriteLine("----------------华丽的分割线----------------");
Hungarain hungarain = new Hungarain(twoPartite);
Console.WriteLine(hungarain.MaxMatch);
Console.WriteLine("----------------华丽的分割线----------------");
Lcp4 lcp4 = new Lcp4();
int[][] test = new int[2][] { new int[] { 1, 0 }, new int[] { 1, 1 } };
Console.WriteLine(lcp4.domino(2, 3, test));
Console.WriteLine(lcp4.domino(3, 3, new int[0][]));
}
private void GenerateGraph()
{
// 2 ребра у крайних, 3 у стенок, 4 во внутреннем квадрате (для неориентированного графа)
int numberOfEdges = 4 * 2 + (Dimension - 2) * 3 * 4 + (Dimension - 2) * (Dimension - 2) * 4;
int numberOfVertexes = Dimension * Dimension;
int[,] mas = new int[numberOfEdges, 3];
int k = 0; //индексация для массива вершин
for (int i = 0; i < numberOfVertexes; i++)
{
int[] neighbors = GetNeighbors(i);
for (int j = 0; j < 4; j++)
if (neighbors[j] != Constants.NoNeighbor)
{
mas[k, 0] = i;
mas[k, 1] = neighbors[j];
mas[k, 2] = Constants.EdgeWeight;
k++;
}
}
matrix = new AdjacencyMatrix(numberOfVertexes, numberOfEdges, mas);
}
