Graph Tutorial
1.Create_tree
#include<iostream>
#define size 3
using namespace std;
class node
{
public:
int data;
node *left;
node *right;
};
class tree
{
public:
node *root;
tree();
void create_tree(int data);
void inorder_traverse(node *s);
void print_data();
};
tree::tree()
{
root=NULL;
}
void tree::create_tree(int data)
{
node *temp = new node;
temp->data = data;
temp->left =NULL;
temp->right =NULL;
if(root ==NULL)
root =temp;
else
{
node *p =root;
node *trail =NULL;
while(p!=NULL)
{
root=p;
if(p->data > data)
{
p =p->left;
}
else
{
p=p->right;
}
}
if(root->data > data)
{
root->left =temp;
}
else
{
root->right = temp;
}
}
}
void tree::inorder_traverse(node *s)
{
if(s)
{
inorder_traverse(s->left);
cout<<s->data<<" ";
inorder_traverse(s->right);
}
}
void tree::print_data()
{
inorder_traverse(root);
}
int main()
{
int data;
tree t;
for(int i=0;i<3;i++)
{
cout<<"Enter data";
cin>>data;
t.create_tree(data);
}
cout<<"inorder: traverse :"<<endl;
t.print_data();
return 0;
}
Create_tree with level_order_traversal
#include<iostream>
using namespace std;
class node
{
public:
int data;
node *left;
node *right;
};
class tree
{
public:
node *root;
tree();
void create_tree(int data);
void print_tree();
void tree_level_order_traverse(node *root);
};
tree::tree()
{
root =NULL;
}
void tree::create_tree(int data)
{
node *temp = new node;
temp->data = data;
temp->left = NULL;
temp->right =NULL;
if(root==NULL)
root=temp;
else
{
node *p=root;
node *trail =NULL;
while(p!=NULL)
{
trail=p;
if(p->data > data)
p=p->left;
else
p=p->right;
}
if(trail->data > data)
trail->left = temp;
else
trail->right = temp;
}
}
void tree::tree_level_order_traverse(node *root)
{
node *data_store[10] = { (node*)0} ;
int size=0;
int follow_variable=0;
while(root)
{
cout<<root->data<<" :";
if(root->left)
data_store[size++]=root->left;
if(root->right)
data_store[size++]=root->right;
root=data_store[follow_variable++];
}
}
void tree::print_tree()
{
tree_level_order_traverse(root);
}
int main()
{
tree t;
for(int i=0;i<8;i++)
t.create_tree(i);
cout<<"create successful"<<endl;
t.print_tree();
return 0;
}
Tree_header_file
#include<iostream>
using namespace std;
class node
{
public:
int data;
node *left;
node *right;
}
class tree
{
public:
node *root;
tree();
void create_tree(int data);
};
tree::tree()
{
root =NULL;
}
void tree::create_tree(int data)
{
node *temp= new node;
temp->data = data;
temp->left =NULL;
temp->right =NULL;
node *p=root;
while(p!=NULL)
{
root =p;
if(p->data > data)
p=p->left;
else
p=p->right;
}
if(root->data > data)
root->left = temp;
else
root->right = temp;
}
Find_Max_Element_without_Recursion
template<class T>
int tree<T>::find_max_element(node *root)
{
node *queue[10]= {(node*)0};
node *p=root;
int data;
int size=0;
int follow_variable =0;
int max=0;
while(p!=NULL)
{
if(max < p->data)
max = p->data;
if(p->left)
queue[size++] = p->left;
if(p->right)
queue[size++] = p->right;
p = queue[follow_variable++];
}
cout<<"the max data :"<<max<<endl;
return max;
Find_Max_Element_with_Recursion
int tree<T>::find_max_element(node *root)
{
int root_value;
int left;
int right;
int max =0;
if(root!=NULL)
{
root_value = root->data;
left = find_max_element(root->left);
right = find_max_element(root->right);
if(right > left)
max=right;
else
max=left;
if(root_value > max)
max=root_value;
}
return max;
Reverse_level_order_traverse
void tree::reverse_level_order(node *root)
{
node *temp_storage[10]= {(node *)0};
int size =0;
int flow_variable =0;
while(root)
{
cout<<" "<<root->data;
if(root->right)
{
temp_storage[size++]=root->right;
}
if(root->left)
{
temp_storage[size++] = root->left;
}
root=temp_storage[flow_variable++];
}
}
