Suppose that num is an int variable. Consider the following C++ code: cin >> num; (num > 0) switch a. b. { case 0: else C. d. num=static_cast (pow (num, 3.0)); case 2: break; } (num) num++num; case 4: break; case 5: num- num break; case 6: num num. num- num / break; case 10: num--; break; default: num- num + 10; cout < < num < < endl; num--20; 41 67 What is the output if the input is 5? What is the output if the input is 26? What is the output if the input is 2? What is the output if the input is -5?