stack.cpp

#include<iostream>
using namespace std;
struct stack
{
    int size;
    int top;
    int *arr;
};
 
int isEmpty(struct stack *ptr)
{
    if (ptr->top == -1)
    {
        return 1;
    }
    else
    {
        return 0;
    }
}
 
int isFull(struct stack *ptr)
{
    if (ptr->top == ptr->size - 1)
    {
        return 1;
    }
    else
    {
        return 0;
    }
}
 
int main()
{
    struct stack *s = (struct stack *)malloc(sizeof(struct stack));
    s->size = 80;
    s->top = -1; 
    s->arr = (int *)malloc(s->size * sizeof(int));

    // s->arr[0]=20;
    // s->top++;

    if(isEmpty(s)){
        cout<<"Empty";
    }
    else{
        cout<<"Not Empty";
    }
    return 0;
}