Implement the concept of stack in c++

PROGRAM:

#include<iostream.h>
#include<conio.h>
#define MAX 20

class stack
{
private:
int s[MAX];
int top,item;

public:
stack()
{
top=-1;
}

Flowchart of single pass assembler

Implementation of Unary operator overloading using friend function.

#include<iostream.h>
#include<conio.h>

class point
{
private:
int x,y;
public:
point(int i,int j)
{
x=i;
y=j;
}

Implementation of Unary & Binary operator overloading using member function.

#include<iostream.h>

#include<conio.h>

class point     //class for unary operator overloading

{

private:

int x,y;

public:

point(int i,int j)

{

x=i;

y=j;

}