expanded array

#include <iostream>
using namespace std;

void showArray(int[], int);
int *expandedArray(int[], int);

const int SIZE = 12; //made SIZE global, can change this to affect size and numbers contained in both arrays

int main()
{
    int values[SIZE];/* = {1, 2, 3, 4, 5}; added for loop below to assign numbers depending on the size of values*/

    for (int x = 0; x < SIZE; x++)
        values[x] = (x + 1);

    cout << "Normal Array: " << endl;
    showArray(values, SIZE);

    int *values2 = 0;

    values2 = expandedArray(values, SIZE);

    cout << "Expanded Array: " << endl;
    showArray(values2, (SIZE * 2));

    return 0;
}

void showArray(int arr[], int size)
{
    for (int x = 0; x < size; x++)
        cout << arr[x] << " ";

    cout << "\n\n";
}

int *expandedArray(int arr[], int size)
{
    int *exArr = 0;

    const int exSIZE = (size * 2);

    exArr = new int [exSIZE];

    for (int x = 0; x < size; x++)
        //exArr[x] = arr[x];
        *(exArr + x) = *(arr + x);

    for (int y = size; y < exSIZE; y++)
        exArr[y] = (y + 1);

    return exArr;
}