#include <pointer_practise.h>
#include <stdio.h>

int max(int* param1, int* param2);
{

    if (param1 == NULL && param2 == NULL)
    return NULL;

    if param1 == NULL
    return *param2;

    if param2 == NULL
    return *param1;

    if *param1 > *param2
    return *param1;

    if *param2 > *param1
    return *param2;

    if *param1 == *param2
    return *param1;



}

int* min(int* param1, int* param2);
{
     if (param1 == NULL && param2 == NULL)
     return NULL;

     if param1 == NULL
     return param2;

     if param2 == NULL
     return param1;

     if *param1 > *param2
     return param2;

     if *param2 > *param1
     return param1;

     if *param1 == *param2
     return param1;



}

void average(int* num_of_items, double* average);
{




}