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#include <iostream>
using namespace std;
struct Node
{
Node* lchild;
int data;
Node* rchild;
}*root = NULL;
void Insert(int key)
{
Node* t = root;
Node* r = NULL, * p;
if (root == NULL)
{
p = new Node;
p->data = key;
p->lchild = p->rchild = NULL;
root = p;
return;
}
while (t)
{
r = t;
if (key < t->data)
t = t->lchild;
else if (key > t->data)
t = t->rchild;
else
return;
}
p = new Node;
p->data = key;
p->lchild = p->rchild = NULL;
if (key > r->data)
r->rchild = p;
else
r->lchild = p;
}
void Inorder(Node* p)
{
if (p)
{
Inorder(p->lchild);
cout << p->data << " ";
Inorder(p->rchild);
}
}
Node* Search(int key)
{
Node* t = root;
while (t)
{
if (key == t->data)
return t;
else if (key > t->data)
t = t->rchild;
else
t = t->lchild;
}
return NULL;
}
int Height(Node* p)
{
int x, y;
if (p == NULL) return 0;
x = Height(p->lchild);
y = Height(p->rchild);
return x > y ? x + 1 : y + 1;
}
Node* InPre(Node* p)
{
while (p && p->rchild != NULL)
p = p->rchild;
return p;
}
Node* InSucc(Node* p)
{
while (p && p->lchild != NULL)
p = p->lchild;
return p;
}
Node* Delete(Node* p, int key)
{
Node* q = NULL;
if (p == NULL)
return NULL;
if (p->lchild == NULL && p->rchild == NULL)
{
if (p == root)
root = NULL;
delete p;
return NULL;
}
if (key < p->data)
p->lchild = Delete(p->lchild, key);
else if (key > p->data)
p->rchild = Delete(p->rchild, key);
else
{
if (Height(p->lchild) > Height(p->lchild))
{
q = InPre(p->lchild);
p->data = q->data;
p->lchild = Delete(p->lchild, key);
}
else
{
q = InSucc(p->rchild);
p->data = q->data;
p->rchild = Delete(p->rchild, key);
}
}
return p;
}
Node* Rinsert(Node* p, int key)
{
Node* t = NULL;
if (p == NULL)
{
p = new Node;
p->data = key;
p->lchild = p->rchild = NULL;
root = p;
return t;
}
if (key < p->data)
p->lchild = Rinsert(p->lchild, key);
else if (key > p->data)
p->rchild = Rinsert(p->rchild, key);
return p;
}
int main()
{
//Node* temp = NULL;
//Insert(10);
//Insert(5);
//Insert(15);
//Insert(3);
//Insert(2);
//Insert(4);
//Insert(11);
//Insert(12);
//Delete(root, 10);
//Inorder(root);
//temp = Search(11);
//cout << temp->data;
int i, q;
i = q = 1;
while (i == 1 || q == 0 )
{
i = q = 2;
}
cout << q;
return 0;
}
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