#include<iostream>
using namespace std;
int stack[100];
int top=-1; 
int main()
{
    int n,e;
    cout<<"———————————————————————————————————————————";
    cout<<"\nImplementation of a stack\n";
    cout<<"———————————————————————————————————————————";
    cout<<"\nNumbers of elements in a Stack ";
    cin>>n;
    for(int i=0;i<n;i++)
    {
        cin>>e;
        stack[++top] = e;
    }
    if(top<0) 
    {
        cout<<"\nStack is empty";
    } 
    cout<<"\nStack view\n";
    for(int i=top;i>=0;i--)
    {
        cout<<"| "<<stack[i]<<" |"<<endl;
    } 
    cout<<"———————————————————————————————————————————\n";
    return 0;
}

kodingwindow@kw:~$ g++ kw.cpp
kodingwindow@kw:~$ ./a.out
———————————————————————————————————————————
Implementation of a stack
———————————————————————————————————————————
Numbers of elements in a Stack 5
7
6
5
2 
0

Stack view
| 0 |
| 2 |
| 5 |
| 6 |
| 7 |
———————————————————————————————————————————
kodingwindow@kw:~$ 

#include<iostream>
using namespace std;
class Stack
{
    int stack[100];
    int top;
    public:
        Stack()
        {
            top=-1;
        }
        void push(int e)
        {
            stack[++top] = e;
        }
        void pop()
        {
            if(top<0) 
            {
                cout<<"\nStack underflow";
                return;
            }
            cout<<"\nTop element popped "<<stack[top--]<<endl;
        }
        void display()
        {
            cout<<"\nStack view\n";
            for(int i=top;i>=0;i--)
            {
                cout<<"| "<<stack[i]<<" |"<<endl;
            } 
        }
};
       
int main()
{
    int ch,n,e;
    Stack s;
    while(ch!=3)
    {
        cout<<"———————————————————————————————————————————";
        cout<<"\nImplementation of a stack operations\n";
        cout<<"———————————————————————————————————————————";
        cout<<"\n1.Push\n2.Pop\n3.Exit\n";
        cout<<"———————————————————————————————————————————";
        cout<<"\nEnter your choice ";
        cin>>ch;
        switch(ch)
        {
            case 1:
                cout<<"\nNumbers of elements in a Stack ";
                cin>>n;
                for(int i=0;i<n;i++)
                {
                    cin>>e;
                    s.push(e);
                }
                s.display();
                break;
            case 2:
                s.pop();
                s.display();
                break;
            case 3:
                exit(0);
            default:
                cout<<"\nWrong choice entered... Please try again!\n";
        }
    }
    return 0;
}

kodingwindow@kw:~$ g++ kw.cpp
kodingwindow@kw:~$ ./a.out
———————————————————————————————————————————
Implementation of a stack operations
———————————————————————————————————————————
1.Push
2.Pop
3.Exit
———————————————————————————————————————————
Enter your choice 1

Numbers of elements in a Stack 3
56
89
14

Stack view
| 14 |
| 89 |
| 56 |
———————————————————————————————————————————
Implementation of a stack operations
———————————————————————————————————————————
1.Push
2.Pop
3.Exit
———————————————————————————————————————————
Enter your choice 2

Top element popped 14

Stack view
| 89 |
| 56 |
———————————————————————————————————————————
Implementation of a stack operations
———————————————————————————————————————————
1.Push
2.Pop
3.Exit
———————————————————————————————————————————
Enter your choice 3
kodingwindow@kw:~$