public override void Run(int verIDStart, int verIDEnd = 0)
{
int V, listTop = 0, listEnd = 0;
List <int> listV = new List <int>();
listV.Add(verIDStart);
while (listTop <= listEnd)
{
V = listV[listTop];
listTop++;
int e = GetEdgeFromVertex(Parent[V], V);
if (!IsVertexVisited(V))
{
if (Parent[V] != -1 && e != -1)
{
// ve canh noi 2 dinh
Form1.getInstance().MainListEdge[e].Color = Color.Blue;
Form1.getInstance().DrawMoveV(Parent[V], V);
}
Form1.getInstance().MainListVertex[V].Color = Color.Blue;
listV = GhepList(V, listV, PhatSinhDinh(V));
listEnd = listV.Count - 1;
Form1.getInstance().fInvalidate();
}
}
}
int[,] P; //ma tran phu luu vet
public Floyd()
: base()
{
G = Form1.getInstance().ConverMatrix();
A = new int[Form1.getInstance().MainListVertex.Count, Form1.getInstance().MainListVertex.Count];
P = new int[Form1.getInstance().MainListVertex.Count, Form1.getInstance().MainListVertex.Count];
}
public void InitParent()
{
for (int i = 0; i < Form1.getInstance().MainListVertex.Count; i++)
{
Parent[i] = -1;
}
}
private List <Edge> CloneEdges()
{
var newList = new List <Edge>(Form1.getInstance().MainListEdge.Capacity);
newList.AddRange(Form1.getInstance().MainListEdge);
return(newList);
}
private void btnDone_MouseClick(object sender, MouseEventArgs e)
{
if (listVertex.Count != 0 || ListEdge.Count != 0)
{
fm1.MainListEdge = ListEdge.ToList <Edge>();
fm1.MainListVertex = listVertex.ToList <Vertex>();
this.Close();
Form1.getInstance().ChangValue(listVertex.Count - 1, listVertex.Count - 1);
fm1.fInvalidate();
}
}
public int Max()
{
int sum = 0;
for (int i = 0; i < Form1.getInstance().MainListVertex.Count; i++)
{
for (int j = 0; j < Form1.getInstance().MainListVertex.Count; j++)
{
if (G[i, j] > 0)
{
sum += G[i, j];
}
}
}
return(sum);
}
public override void Run(int verIDStart, int verIDStartEnd = 0)
{
List <int> listV = PhatSinhDinh(verIDStart);
Form1.getInstance().MainListVertex[verIDStart].Color = Color.Blue;
Form1.getInstance().fInvalidate(); //reset lai cua so ve
Thread.Sleep(Form1.timeSleep); //
Visited.Add(verIDStart);
if (listV.Count != 0)
{
foreach (int i in listV)
{
int e = GetEdgeFromVertex(verIDStart, i);
if (!IsVertexVisited(i))
{
Form1.getInstance().MainListEdge[e].Color = Color.Blue;
Form1.getInstance().DrawMoveV(verIDStart, i);
Thread.Sleep(Form1.timeSleep);
Run(i);
Form1.getInstance().DrawMoveV(i, verIDStart);
Thread.Sleep(Form1.timeSleep);
}
else
{
Form1.getInstance().MainListEdge[e].Color = Color.Red;
Form1.getInstance().fInvalidate();
Thread.Sleep(Form1.timeSleep * 20);
}
if (Form1.getInstance().MainListEdge[e].Color == Color.Red)
{
Form1.getInstance().MainListEdge[e].Color = Color.LightSlateGray;
}
}
}
}
public override void Run(int verIDStart, int verIDEnd = 0)
{
MST = new int[ListVertex.Count, ListVertex.Count];
InitParent();
Sort();
for (int i = 0; i < ListEdge.Count; i++)
{
int v1 = FindSet(ListEdge[i].V1.Name);
int v2 = FindSet(ListEdge[i].V2.Name);
if (v1 != v2)
{
int x = ListEdge[i].V1.Name;
int y = ListEdge[i].V2.Name;
ListVertex[x].Color = Color.Blue;
ListVertex[y].Color = Color.Blue;
ListEdge[i].Color = Color.Blue;
Form1.getInstance().fInvalidate();
Thread.Sleep(Form1.timeSleep * 20);
MST[x, y] = ListEdge[i].G;
Union(v1, v2);
}
}
}
public override void Run(int verIDStart, int verIDEnd = 0)
{
for (int i = 0; i < Form1.getInstance().MainListVertex.Count; i++)
{
if (Matrix[verIDStart, i] > 0)
{
khoangcach[i] = Matrix[verIDStart, i];
}
else
{
khoangcach[i] = int.MaxValue;
}
if (Matrix[verIDStart, i] > 0)
{
Truoc[i] = verIDStart;
}
else
{
Truoc[i] = -1;
}
}
for (int i = 0; i < Form1.getInstance().MainListVertex.Count - 2; i++)
{
for (int u = 0; u < Form1.getInstance().MainListVertex.Count; u++)
{
for (int v = 0; v < Form1.getInstance().MainListVertex.Count; v++)
{
if (verIDStart != u && u != v && verIDStart != v && Matrix[u, v] > 0)
{
if (khoangcach[v] > khoangcach[u] + Matrix[u, v])
{
khoangcach[v] = khoangcach[u] + Matrix[u, v];;
Truoc[v] = u;
}
}
}
}
}
//chuyen duong di ngan nhat vao stack
Stack <int> st = new Stack <int>();
st.Push(verIDEnd);
while (true)
{
int v = st.Pop();
if (v == verIDStart)
{
st.Push(v);
break;
}
if (v == -1)
{
break;
}
int vTrc = Truoc[v];
st.Push(v);
st.Push(vTrc);
}
int s = -1;
int e = -1;
//duyet do hoa cho duong di ngan nhat
while (st.Count != 0)
{
e = st.Pop();
if (Form1.getInstance().MainListVertex[e].Color != Color.Red)
{
Form1.getInstance().MainListVertex[e].Color = Color.Blue;//to mau dinh
}
Form1.getInstance().fInvalidate();
Thread.Sleep(Form1.timeSleep * 20);
if (s != -1)
{
int v = GetEdgeFromVertex(s, e);
Form1.getInstance().MainListEdge[v].Color = Color.Blue;
//ve canh
Form1.getInstance().DrawMoveV(s, e);
Thread.Sleep(Form1.timeSleep * 20);
}
s = e;
}
Form1.getInstance().fInvalidate();
if (khoangcach[verIDEnd] != int.MaxValue)
{
MessageBox.Show("Khoang cach tu tu " + verIDStart + "->" + verIDEnd + " = " + khoangcach[verIDEnd].ToString());
}
else
{
MessageBox.Show("khong co duong di ngan nhat tu " + verIDStart + "->" + verIDEnd);
}
}
public FB()
{
Matrix = Form1.getInstance().ConverMatrix();
Truoc = new int[Form1.getInstance().MainListVertex.Count];
khoangcach = new int[Form1.getInstance().MainListVertex.Count];
}
public Algorithms()
{
Visited = new List <int>();
Matrix = Form1.getInstance().ConverMatrix();
Parent = new int[ListVertex.Count];
}
public override void Run(int verIDStart, int verIDEnd = 0)
{
Init(verIDStart);
int i = 0;
bool kt = true;
while (!IsVertexVisited(verIDEnd))
{
for (i = 0; i < countVertex; i++)
{
if (!IsVertexVisited(i) && Len[i] < Int16.MaxValue)
{
break;
}
}
if (i == countVertex)
{
kt = false;
break;
}
for (int j = 0; j < countVertex; j++)
{
if (!IsVertexVisited(j) && Len[i] > Len[j])
{
i = j;
}
}
int temp;
Visited.Add(i);
for (int j = 0; j < countVertex; j++)
{
if (!IsVertexVisited(j) && Len[i] + (temp = Matrix[i, j] != -1 ? Matrix[i, j] : Int16.MaxValue) < Len[j])
{
Len[j] = Len[i] + Matrix[i, j];
Parent[j] = i;
}
}
}
if (kt)
{
Stack <int> st = new Stack <int>();
int k = verIDEnd;
while (k != verIDStart)
{
st.Push(k);
k = Parent[k];
}
st.Push(verIDStart);
int s = -1;
int e = -1;
while (st.Count != 0)
{
e = st.Pop();
if (ListVertex[e].Color != Color.Red)
{
ListVertex[e].Color = Color.Blue;//to mau dinh
}
Form1.getInstance().fInvalidate();
Thread.Sleep(Form1.timeSleep * 20);
if (s != -1)
{
//to canh
int v = GetEdgeFromVertex(s, e);
ListEdge[v].Color = Color.Blue;
//ve canh
Form1.getInstance().DrawMoveV(s, e);
Thread.Sleep(Form1.timeSleep * 20);
}
s = e;
}
Form1.getInstance().fInvalidate();
MessageBox.Show("Khoang cach tu tu " + verIDStart + "->" + verIDEnd + " = " + Len[verIDEnd].ToString());
}
else
{
MessageBox.Show("Khong co duong di tu " + verIDStart + "->" + verIDEnd);
}
}
public override void Run(int vStart, int vEnd)
{
for (int i = 0; i < Form1.getInstance().MainListVertex.Count; i++)
{
for (int j = 0; j < Form1.getInstance().MainListVertex.Count; j++)
{
if (G[i, j] > 0)
{
A[i, j] = G[i, j];
}
else
{
A[i, j] = Max();
}
P[i, j] = -1;
}
}
for (int k = 0; k < Form1.getInstance().MainListVertex.Count; k++)
{
for (int i = 0; i < Form1.getInstance().MainListVertex.Count; i++)
{
for (int j = 0; j < Form1.getInstance().MainListVertex.Count; j++)
{
if (i != j && j != k && k != i && A[i, k] > 0 && A[k, j] > 0 && A[i, j] > A[i, k] + A[k, j])
{
A[i, j] = A[i, k] + A[k, j];
P[i, j] = k;
}
}
}
}
String temp = "";
Stack <int> st = new Stack <int>();
st.Push(vEnd);
st.Push(vStart);
while (true)
{
int i = st.Pop();
int j = st.Pop();
int k = P[i, j];
st.Push(j);
if (k == -1)
{
st.Push(i);
break;
}
st.Push(k);
st.Push(i);
}
int s = -1;
int e = -1;
while (st.Count != 0)
{
e = st.Pop();
if (Form1.getInstance().MainListVertex[e].Color != Color.Red)
{
Form1.getInstance().MainListVertex[e].Color = Color.Blue;//to mau dinh
}
Form1.getInstance().fInvalidate();
Thread.Sleep(Form1.timeSleep * 20);
if (s != -1)
{
//to canh
int v = GetEdgeFromVertex(s, e);
if (v != -1)
{
Form1.getInstance().MainListEdge[v].Color = Color.Blue;
//ve canh
Form1.getInstance().DrawMoveV(s, e);
Thread.Sleep(Form1.timeSleep * 20);
}
}
s = e;
}
Form1.getInstance().fInvalidate();
if (A[vStart, vEnd] != Max())
{
MessageBox.Show("Khoang cach tu tu " + vStart + "->" + vEnd + " = " + A[vStart, vEnd].ToString());
}
else
{
MessageBox.Show("Khong co duong di tu " + vStart + "->" + vEnd);
}
}