/* Array expander: Write a function that accepts an int array as argument. The function should create a new array that is twice the size of the argument array. The function should copy the contents of the argument array to the new array, and initialize the unused elements of the second array with 0. The function should return a pointer to the new array */ #include using namespace std; const int NUM_ELEM = 5; int* doubleArray(int *a); int main() { int origArr[NUM_ELEM]; for (int i = 0; i < NUM_ELEM; ++i) origArr[i] = i; cout << "Original array" << endl; for (int i = 0; i < NUM_ELEM; ++i) cout << origArr[i] << " "; cout << endl; int *newArr = doubleArray(origArr); for (int i = 0; i < 2*NUM_ELEM; ++i) cout << newArr[i] << " "; cout << endl; delete [] newArr; return 0; } int* doubleArray(int *a) { // Your code goes here }