19 (10 points) Fill in the blanks of the following C++ programs that print the given output. a. #include using namespace std; int main() C int number; > number= while [ cout < < number 1 return 0; Output 15 12 9 6 3 0 b) #include using namespace std; int main() int number; for (number= } cout < < return 0; Output 24 16 256