Consider the following program:

#include

using namespace std;

int f ( int a, int &b, char &c) {

1. int result;

2. if (c == a) {

3. a = a+(++b);

4. result = b;

5. } else if (c == s) {

6. b = b*(a++);

7. result = a - b;

8. } else {

9. c = ?;
10. result = --b;

11. }

12. return result;

}

void main() {

13. int x = 2, y = 4, z;

14. char ca = a;

15. z = f(x, y, ca);

16. cout << x = << x, y = << y << z = << z << ca = << ca << endl;

17 ca = s;

18. {

19. int x=3, z = -2;

20. x = calc (z, y, ca);

21. cout << x = << x, y = << y << z = << z << ca = <

22. }

23. cout << x = << x, y = << y << z = << z << ca = << ca << endl;

24. ca = a;

25. z = calc(x, y, ca);

26. cout << x = << x, y = << y << z = << z << ca = << ca << endl;

27. ca = d;

28. x = calc (x, z, ca);

29. cout << x = << x, y = << y << z = << z << ca = << ca << endl;

}

1. What are the input and output parameters to the function f?
2. Trace the program above, by showing the sequence of lines and the number of the line, to be executed and the result of executing those specific lines.(e.g. line 11: a+b=c, line 12. result of c. etc.) Thanks