#include <stdio.h>
#define ROSSO   "\x1b[31m"
#define VERDE   "\x1b[32m"
#define GIALLO  "\x1b[33m"
#define BLU    "\x1b[34m"
#define MAGENTA "\x1b[35m"
#define CIANO    "\x1b[36m"
#define RESET   "\x1b[0m"
#define MAX 5
int top, stato;


void push (int stack[], int item)
{   if (top == (MAX-1))
    stato = 0;
    else
    {   stato = 1;
    ++top;
    stack [top] = item;
    }
}


int pop (int stack[])
{
int ret;
    if (top == -1)
    {   ret = 0;
    stato = 0;
    }
    else
    {   stato = 1;
    ret = stack [top];
    --top;
    }
return ret;
}


void display (int stack[])
{   int i;
    printf ("\nLo stack è: ");
    if (top == -1)
    printf ("vuoto");
    else
    {   for (i=top; i>=0; --i)
        printf ("\n--------\n|%3d   |\n--------",stack[i]);
    }
    printf ("\n");
}