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#include <iostream>
#include <string.h>
#include <conio.h>
using namespace std;
template <class object>
class Tree{
public:
Tree(object * ob)
{
obj = ob;
Left = Right = NULL;
}
Tree()
{
obj = NULL;
Left = Right = NULL;
}
void set_obj(object * objt){objt = obj;};
object * get_obj(){return obj;};
void set_left(Tree * left){Left = left;};
void set_right(Tree * right){Right = right;};
Tree * get_left(){return Left;};
Tree * get_right(){return Right;};
private:
object * obj;
Tree * Left;
Tree * Right;
};
void preorder(Tree<char>*);
void inorder(Tree<char>*);
void postorder(Tree<char>*);
void insert(Tree<char>*,char*);
int main(int argc, char* argv[])
{
Tree<char> * ROOT = new Tree<char>();
static char* x[] = {"Sarmad","Usman","Rahman","Ali","Asgar","Zibra","Qamar",NULL};
ROOT->set_obj(x[0]);
for(int i=1; i<2;i++)
{
insert(ROOT,x[i]);
}
cout<<"PRE-ORDER"<<endl;
preorder(ROOT);
cout<<'\n'<<endl;
cout<<"In-ORDER"<<endl;
inorder(ROOT);
cout<<'\n'<<endl;
cout<<"POST-ORDER"<<endl;
postorder(ROOT);
_getch();
}
void preorder(Tree<char>* Node)
{
if(Node != NULL)
{
cout<<*(Node->get_obj())<<'\t';
preorder(Node->get_left());
preorder(Node->get_right());
}
}
void inorder(Tree<char>* Node)
{
if(Node != NULL)
{
inorder(Node->get_left());
cout<<*(Node->get_obj())<<'\t';
inorder(Node->get_right());
}
}
void postorder(Tree<char>* Node)
{
if(Node != NULL)
{
postorder(Node->get_left());
postorder(Node->get_right());
cout<<*(Node->get_obj())<<'\t';
}
}
void insert(Tree<char>* Root,char * info)
{
Tree<char> * Node = new Tree<char>(info);
Tree<char>* p,*q;
p = q = Root;
while(strcmp(p->get_obj(),info) != 0 && q != NULL)
{
p = q;
if(strcmp(p->get_obj(),info) < 0)
{
q = p->get_left();
}
else
{
q = p->get_right();
}
}
if(strcmp(p->get_obj(),info) == 0)
{
cout<<"Number Dublicated"<<*(info)<<endl;
delete Node;
}
else if(strcmp(p->get_obj(),info)< 0)
{
p->set_left(Node);
}
else
{
p->set_right(Node);
}
}
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