Lab 7 - Stack

#include<iostream>

using namespace std;

#define MAX 9999

class Stack {
    int top;

public:
    int a[MAX]; // Marimea maxima a stivei

    Stack()
    {
        top = -1;
    }
    bool push(int x);
    int pop();
    bool isEmpty();
};

bool Stack::push(int x)
{
    if (top >= (MAX - 1))
    {
        cout << " a";
        return 0;
    }
    else
    {
        a[++top] = x;
        cout << x << " pushed into stack\n";
        return 1;
    }
}

int Stack::pop()
{
    if (top < 0)
    {
        cout << ";
        return 0;
    }
    else
    {
        int x = a[top--];
        return x;
    }
}

bool Stack::isEmpty()
{
    return (top < 0);
}

int main()
{
    struct Stack s;
    s.push(10);
    s.push(20);
    s.push(30);
    cout << s.pop() << " Popped from stack\n";

    return 0;
}