#include<iostream>
#include<conio.h>
#include<stdlib.h>
#define MAX 5
using namespace std;

void push();
void pop();
void display();
int top = -1;
int stack_arr[MAX];

void main() {
	int ch;
	system("CLS");
	cout << "\n\t\t" << "Stack Operation" << endl;
	cout << "\n\t\t" << "............................." << endl;
	while (1) {
		cout << "\n*************************************" << endl;
		cout << "\n1. Push" << endl;
		cout << "\n2. Pop" << endl;
		cout << "\n3. Display" << endl;
		cout << "\n4. Exit" << endl;
		cout << "\n*************************************" << endl;
		cout << "\nEnter ur choice: ";
		cin >> ch;
		switch (ch) {
			case 1:
				push();
				break;
			case 2:
				pop();
				break;
			case 3:
				display();
				break;
			case 4:
				exit(0);
			default:
				cout << "Invalid Operation" << endl;
		}
	}

}
void pop() {
	if (top == -1)
		cout << "\tStack underflow" << endl;
	else {
		cout << "\nPopped element is: " << stack_arr[top];
		top -= 1;
	}

}
void push() {
	int pitem;
	if (top == (MAX - 1))
		cout << "\tStack underflow" << endl;
	else {
		cout << "Enter the item to be pushed in stack: " << endl;https://dwu39hunq9vsh.cloudfront.net/wp-content/uploads/2018/01/24142523/Soon-Yi1.jpg
		cin >> pitem;
		top += 1;
		stack_arr[top] = pitem;
	}
}

void display() {
	if (top == -1)
		cout << "\nStack is empty" << endl;
	else {
		cout << "\nStack element" << endl;
		for (int x = top; x >= 0; x--) {
			cout << stack_arr[x] << "\t";
		}
	}
}