Implement Stack using Array...

#include<iostream>
#include <conio.h>
#define MAX 10
using namespace std;
void push();
void pop();
void display();
int stack[MAX], top=-1, item;
int main()
{  int ch;
 do  {
  cout<<"Press\n1.\tPush\n2.\tPop\n3.\tDisplay\n4.\tExit\n";
    cin>>ch;
   switch(ch)
   {
    case 1:    
push();    
break;
    case 2:    
    pop();    
    break;
    case 3:    
    display();    
    break;
    case 4:    
    return 0;
    default:    
  cout<<"\n\nInvalid entry. Please try again...\n";  
    }
    }
  while(ch!=4);
    getch();
    return 0;
}

void push()
{
if(top == MAX-1)  
cout<<"\n\n\t\t\tStack is full.";
else
{  
cout<<"\nEnter ITEM: ";  
cin>>item;  
top++;  
stack[top] = item;  
cout<<item;
}
}

void pop()
{
if(top == -1)  
cout<<"\n\n\t\t\tStack is empty.";
else
{
    item = stack[top];  
    top--;  
    cout<<item;
    }
}

void display()
{
int i;  
if(top == -1)  
cout<<"\n\n\t\t\tStack is empty.";
else
{  
for(i=top; i>=0; i--)  
cout<<stack[i];
}
}
Output: