public void Inorder(ref Graphics g, cay node, ref string s)
{
if (node == null)
{
return;
}
Inorder(ref g, node.Left, ref s);
s = s + node.Data.ToString() + " ";
Draw_node.eclip_red(ref g, node.Toadongang, node.Toadodoc, 40, 40, node.Data);
Thread.Sleep(1000);
Draw_node.eclip(ref g, node.Toadongang, node.Toadodoc, 40, 40, node.Data);
Inorder(ref g, node.Right, ref s);
}
public void Add(ref int[] trai, ref Graphics g, int newdata, ref cay node, ref int x, int height_pt, int width_pt, ref int toadodoctruoc, ref int toadongangtruoc)
{
if (node == null)
{
thao_tac.Themnut(height_pt, width_pt, newdata, ref x, trai, ref ngang, ref doc);
node = new cay(newdata, doc, ngang);
//MessageBox.Show(toadongangtruoc.ToString());
if (x != 1)
{
Draw_node.duongthang(ref g, node.Toadongang, node.Toadodoc, toadongangtruoc, toadodoctruoc);
}
Draw_node.eclip_yellow(ref g, node.Toadongang, node.Toadodoc, 40, 40, node.Data);
Thread.Sleep(1000);
Draw_node.eclip(ref g, node.Toadongang, node.Toadodoc, 40, 40, node.Data);
toadodoctruoc = node.Toadodoc;
toadongangtruoc = node.Toadongang;
// MessageBox.Show(toadodoctruoc.ToString() + " " + toadongangtruoc.ToString());
}
else
{
// tree.insert(ref g,newdata,ref trai,ref x,height_pt,width_pt,ngang,doc,ref toadodoctruoc,ref toadongangtruoc);
if (newdata < node.Data)
{
x++;
trai[x] = 1;
toadodoctruoc = node.Toadodoc;
toadongangtruoc = node.Toadongang;
Draw_node.eclip_red(ref g, node.Toadongang, node.Toadodoc, 40, 40, node.Data);
Thread.Sleep(1000);
Draw_node.eclip(ref g, node.Toadongang, node.Toadodoc, 40, 40, node.Data);
Add(ref trai, ref g, newdata, ref node.Left, ref x, height_pt, width_pt, ref toadodoctruoc, ref toadongangtruoc);
}
else
{
x++;
trai[x] = 0;
toadodoctruoc = node.Toadodoc;
toadongangtruoc = node.Toadongang;
Draw_node.eclip_red(ref g, node.Toadongang, node.Toadodoc, 40, 40, node.Data);
Thread.Sleep(1000);
Draw_node.eclip(ref g, node.Toadongang, node.Toadodoc, 40, 40, node.Data);
Add(ref trai, ref g, newdata, ref node.Right, ref x, height_pt, width_pt, ref toadodoctruoc, ref toadongangtruoc);
}
}
Draw_node.eclip_white(ref g, 10, 10, 40, 40, newdata);
}
private void BT_search_Click(object sender, EventArgs e)
{
if (txt_value.Text == "")
{
MessageBox.Show("Chưa nhập dữ liệu!");
return;
}
Graphics g = pt_cay.CreateGraphics();
int value = Convert.ToInt32(txt_value.Text);
int kt = tree.search(ref g, tree.tree, value);
if (kt == 1)
{
MessageBox.Show("ĐÃ TÌM THẤY GIÁ TRỊ VALUE!!!");
}
else
{
MessageBox.Show("KHÔNG TÌM THẤY GIÁ TRỊ VALUE!!!");
}
Draw_node.eclip_white(ref g, 10, 10, 40, 40, value);
}
public int search(ref Graphics g, cay node, int key)
{
Draw_node.eclip_red(ref g, 10, 10, 40, 40, key);
if (node == null)
{
return(0);
}
// MessageBox.Show(A[0].ToString() + i.ToString());
if (node.Data == key)
{
Draw_node.eclip_yellow(ref g, node.Toadongang, node.Toadodoc, 40, 40, node.Data);
Thread.Sleep(1000);
Draw_node.eclip(ref g, node.Toadongang, node.Toadodoc, 40, 40, node.Data);
return(1);
}
if (node.Data < key)
{
Draw_node.eclip_red(ref g, node.Toadongang, node.Toadodoc, 40, 40, node.Data);
Thread.Sleep(1000);
Draw_node.eclip(ref g, node.Toadongang, node.Toadodoc, 40, 40, node.Data);
return(search(ref g, node.Right, key));
}
else
if (node.Data > key)
{
Draw_node.eclip_red(ref g, node.Toadongang, node.Toadodoc, 40, 40, node.Data);
Thread.Sleep(1000);
Draw_node.eclip(ref g, node.Toadongang, node.Toadodoc, 40, 40, node.Data);
return(search(ref g, node.Left, key));
}
else
{
return(0);
}
}
public int delete(ref Graphics g, ref cay node, int data)
{
Draw_node.eclip_red(ref g, 10, 10, 40, 40, data);
cay prdelnode = null;
int ontheleft = 0;
cay delnode = node;
while (delnode != null)
{
if (delnode.Data == data)
{
break;
}
prdelnode = delnode;
if (delnode.Data > data)
{
//MessageBox.Show("co dô");
Draw_node.eclip_red(ref g, delnode.Toadongang, delnode.Toadodoc, 40, 40, delnode.Data);
Thread.Sleep(1000);
Draw_node.eclip(ref g, delnode.Toadongang, delnode.Toadodoc, 40, 40, delnode.Data);
delnode = delnode.Left;
ontheleft = 1;
}
else
{
//MessageBox.Show("cung co co dô");
Draw_node.eclip_red(ref g, delnode.Toadongang, delnode.Toadodoc, 40, 40, delnode.Data);
Thread.Sleep(1000);
Draw_node.eclip(ref g, delnode.Toadongang, delnode.Toadodoc, 40, 40, delnode.Data);
delnode = delnode.Right;
ontheleft = 0;
}
}
// MessageBox.Show(Convert.ToString(prdelnode.Data));
if (delnode == null)
{
return(0);
}
if (prdelnode == null)//delnode là nút gốc
{
if (delnode.Left == null && delnode.Right == null)
{
Draw_node.eclip_white(ref g, delnode.Toadongang, delnode.Toadodoc, 40, 40, delnode.Data);
node = null;
}
else
{
if (delnode.Left == null)// delnode có 1 cây con phải
{
Draw_node.eclip_white(ref g, delnode.Toadongang, delnode.Toadodoc, 40, 40, delnode.Data);
Draw_node.duongthang_trang(ref g, delnode.Toadongang, delnode.Toadodoc, delnode.Right.Toadongang, delnode.Right.Toadodoc);
Draw_node.eclip(ref g, delnode.Right.Toadongang, delnode.Right.Toadodoc, 40, 40, delnode.Right.Data);
node = node.Right;
delnode.Right = null;
}
else
{
if (delnode.Right == null) // delnode có 1 cây con trái
{
Draw_node.eclip_white(ref g, delnode.Toadongang, delnode.Toadodoc, 40, 40, delnode.Data);
Draw_node.duongthang_trang(ref g, delnode.Toadongang, delnode.Toadodoc, delnode.Left.Toadongang, delnode.Left.Toadodoc);
Draw_node.eclip(ref g, delnode.Left.Toadongang, delnode.Left.Toadodoc, 40, 40, delnode.Left.Data);
node = node.Left;
delnode.Left = null;
}
}
}
}
else
{
if (delnode.Left == null && delnode.Right == null)// lá
{
if (ontheleft == 1)
{
Draw_node.eclip_yellow(ref g, prdelnode.Left.Toadongang, prdelnode.Left.Toadodoc, 40, 40, prdelnode.Left.Data);
Thread.Sleep(1000);
Draw_node.eclip_white(ref g, prdelnode.Left.Toadongang, prdelnode.Left.Toadodoc, 40, 40, prdelnode.Left.Data);
Draw_node.duongthang_trang(ref g, prdelnode.Left.Toadongang, prdelnode.Left.Toadodoc, prdelnode.Toadongang, prdelnode.Toadodoc);
Draw_node.eclip(ref g, prdelnode.Toadongang, prdelnode.Toadodoc, 40, 40, prdelnode.Data);
prdelnode.Left = null;
}
else
{
Draw_node.eclip_yellow(ref g, prdelnode.Right.Toadongang, prdelnode.Right.Toadodoc, 40, 40, prdelnode.Right.Data);
Thread.Sleep(1000);
Draw_node.eclip_white(ref g, prdelnode.Right.Toadongang, prdelnode.Right.Toadodoc, 40, 40, prdelnode.Right.Data);
Draw_node.duongthang_trang(ref g, prdelnode.Right.Toadongang, prdelnode.Right.Toadodoc, prdelnode.Toadongang, prdelnode.Toadodoc);
Draw_node.eclip(ref g, prdelnode.Toadongang, prdelnode.Toadodoc, 40, 40, prdelnode.Data);
prdelnode.Right = null;
}
}
else
{
if (delnode.Left == null)// delnode có 1 cây con phải
{
if (ontheleft == 1)
{
prdelnode.Left = delnode.Right;
}
else
{
prdelnode.Right = delnode.Right;
}
Draw_node.eclip_yellow(ref g, delnode.Toadongang, delnode.Toadodoc, 40, 40, delnode.Data);
Thread.Sleep(1000);
Draw_node.eclip_white(ref g, delnode.Toadongang, delnode.Toadodoc, 40, 40, delnode.Data);
Draw_node.duongthang_trang(ref g, prdelnode.Toadongang, prdelnode.Toadodoc, delnode.Toadongang, delnode.Toadodoc);
Draw_node.duongthang_trang(ref g, delnode.Right.Toadongang, delnode.Right.Toadodoc, delnode.Toadongang, delnode.Toadodoc);
Draw_node.duongthang(ref g, delnode.Right.Toadongang, delnode.Right.Toadodoc, prdelnode.Toadongang, prdelnode.Toadodoc);
Draw_node.eclip(ref g, prdelnode.Toadongang, prdelnode.Toadodoc, 40, 40, prdelnode.Data);
Draw_node.eclip(ref g, delnode.Right.Toadongang, delnode.Right.Toadodoc, 40, 40, delnode.Right.Data);
delnode.Right = null;
}
else // delnode có 1 cây con trái
{
if (delnode.Right == null)
{
if (ontheleft == 1)
{
prdelnode.Left = delnode.Left;
}
else
{
prdelnode.Right = delnode.Left;
}
Draw_node.eclip_yellow(ref g, delnode.Toadongang, delnode.Toadodoc, 40, 40, delnode.Data);
Thread.Sleep(1000);
Draw_node.eclip_white(ref g, delnode.Toadongang, delnode.Toadodoc, 40, 40, delnode.Data);
Draw_node.duongthang_trang(ref g, prdelnode.Toadongang, prdelnode.Toadodoc, delnode.Toadongang, delnode.Toadodoc);
Draw_node.duongthang_trang(ref g, delnode.Left.Toadongang, delnode.Left.Toadodoc, delnode.Toadongang, delnode.Toadodoc);
Draw_node.duongthang(ref g, delnode.Left.Toadongang, delnode.Left.Toadodoc, prdelnode.Toadongang, prdelnode.Toadodoc);
Draw_node.eclip(ref g, prdelnode.Toadongang, prdelnode.Toadodoc, 40, 40, prdelnode.Data);
Draw_node.eclip(ref g, delnode.Left.Toadongang, delnode.Left.Toadodoc, 40, 40, delnode.Left.Data);
delnode.Left = null;
}
}
}
}
if (delnode.Left != null && delnode.Right != null)// dell node có 2 cây con
{
//y = 2;
Draw_node.eclip_red(ref g, delnode.Toadongang, delnode.Toadodoc, 40, 40, delnode.Data);
Thread.Sleep(1000);
cay MLNode = delnode.Right;
cay PrMLNode = delnode;
while (MLNode.Left != null)
{
Draw_node.eclip_pink(ref g, MLNode.Toadongang, MLNode.Toadodoc, 40, 40, MLNode.Data);
Thread.Sleep(1000);
Draw_node.eclip(ref g, MLNode.Toadongang, MLNode.Toadodoc, 40, 40, MLNode.Data);
PrMLNode = MLNode;
MLNode = MLNode.Left;
}
Draw_node.eclip_pink(ref g, MLNode.Toadongang, MLNode.Toadodoc, 40, 40, MLNode.Data);
Thread.Sleep(1000);
Draw_node.eclip_yellow(ref g, MLNode.Toadongang, MLNode.Toadodoc, 40, 40, MLNode.Data);
Thread.Sleep(1000);
//themang[vttmang] = MLNode.Data;
delnode.Data = MLNode.Data;
if (PrMLNode == delnode)
{
PrMLNode.Right = MLNode.Right;
}
else
{
PrMLNode.Left = MLNode.Right;
}
if (MLNode.Right != null)
{
// kiemtra = 1;
Draw_node.eclip_white(ref g, MLNode.Toadongang, MLNode.Toadodoc, 40, 40, MLNode.Data);
Draw_node.duongthang_trang(ref g, PrMLNode.Toadongang, PrMLNode.Toadodoc, MLNode.Toadongang, MLNode.Toadodoc);
Draw_node.duongthang_trang(ref g, MLNode.Right.Toadongang, MLNode.Right.Toadodoc, MLNode.Toadongang, MLNode.Toadodoc);
Draw_node.duongthang(ref g, MLNode.Right.Toadongang, MLNode.Right.Toadodoc, PrMLNode.Toadongang, PrMLNode.Toadodoc);
Draw_node.eclip(ref g, PrMLNode.Toadongang, PrMLNode.Toadodoc, 40, 40, PrMLNode.Data);
Draw_node.eclip(ref g, MLNode.Right.Toadongang, MLNode.Right.Toadodoc, 40, 40, MLNode.Right.Data);
}
else
{
Draw_node.eclip_white(ref g, MLNode.Toadongang, MLNode.Toadodoc, 40, 40, MLNode.Data);
Draw_node.duongthang_trang(ref g, PrMLNode.Toadongang, PrMLNode.Toadodoc, MLNode.Toadongang, MLNode.Toadodoc);
Draw_node.eclip(ref g, PrMLNode.Toadongang, PrMLNode.Toadodoc, 40, 40, PrMLNode.Data);
}
Draw_node.eclip(ref g, delnode.Toadongang, delnode.Toadodoc, 40, 40, MLNode.Data);
delnode = MLNode;
}
delnode = null;
Draw_node.eclip_white(ref g, 10, 10, 40, 40, data);
return(1);
}