What is the output of the following segment of code if 4 is input by the user when asked to enter a number?
int num;
int total = 0;
cout << "Enter a number from 1 to 10: ";
cin >> num;
switch (num)
{
case 1:
case 2: total = 5;
case 3: total = 10;
case 4: total = total + 3;
case 8: total = total + 6;
default: total = total + 4;
}
cout << total << endl;

Question

Quizplus · Accepted Answer

Since the user input is 4, the case for 4 will be executed and the value of total will be updated to 3 (initial value of total) + 3 = 6. However, the switch statement does not have a break statement after each case, so the subsequent cases will also be executed. Therefore, the value of total will be further updated to 6 + 6 = 12 (case 8) and then to 12 + 4 = 16 (default case). However, since there is no break statement after case 4, the subsequent cases will also be executed in addition to case 4. Therefore, the final value of total will be updated to 16 + 5 = 21 (case 1 and case 2). Therefore, the output will be 21.

What Is the Output of the Following Segment of Code