stack.cpp

/******************************
  	    stack.cpp
    Auther:Syed Zain Ul hasan
  *****************************/

#include <iostream>
using namespace std;

const int size=20;
class Stack {
  private:
    int arr[size];    // elements
	int top;
  public:
	  Stack(){ top=-1 ; }
    void push(int x){
		if(top==size)
			cout<<"Stack Full"<<endl;
		else{
			arr[++top]=x;
		}
	}
    void pop(){
		if(top==-1)
			cout<<"Stack Empty";
		else{
			top--;
		}
	}
    int Top() const{// return top element
		if(top==-1)
			cout<<"Stack Empty";
		else{
			return arr[top];
		}
	}
    bool empty() const{       // return true if empty.
        return (top==-1);
    }
};

int main() {

	 Stack s;
	 s.push(5);
	 s.push(3);
	 s.push(8);

	 //printin all elements
	 while(!s.empty()){
		 cout<<s.Top()<<" ";
		 s.pop();
	 }

	return 0;
}