a. This program is supposed to write 30 20 10, but it doesn't. Find all of the bugs and show a fixed version of the program:

int main()

{

intarr[3]={5,10,15}; int* ptr = arr; *ptr = 10; // set arr[0] to 10 *ptr + 1 = 20; / set arr[1] to 20 ptr += 2; ptr[0] = 30; // set arr[2] to 30

while (ptr >= arr)

}

ptr--; cout << ' ' << *ptr; // print values }

cout << endl;

}