9. (4 points) Suppose that num is an int variable. Consider the following ++ code: ein num if (num >= 0) switch (num) case O : static cast(pow(num, 3.0)) num = ; break case 2: num +num 7 break num -num 4z break num= num * 4; num-num6 case 5: case 6: break case 10 num== ; break default: num20 num num+ 1O cout num