#include <iostream>

using namespace std;

double mean_array( double array[] )
{
    cout << sizeof(array) << endl;
    cout << sizeof(double*) << endl;
    cout << sizeof(array[0]) << endl;
    return 0;
}

double test1( double array[] )
{
    return 0;
}

double test2( double *array )
{
    return 0;
}

int main()
{
    double ar[6] = { 5, 10, 15, 20, 25, 30 };
    mean_array(ar);
}