Form A Key:


Q   A  Explanation
1.  3  (For answers to questions 1-5 see the course notes.)
2.  6  
3.  5
4.  5  
5.  4  
6.  3  6.0 + 5 / 4 = 6.0 + 1 = 7.0
7.  4  9 % 10 + 3 = 9 + 3 = 12
8.  1  11 + 5.8 = 16.8 which is stored as 16
9.  2  Uppercase X instead of * for multiplication.
10. 1  OK, (double + integer) is an double. 
11. 1  OK, sulu is coerced to an integer.
12. 2  Left hand side of '=' must be a variable.
13. 1  -1 > -2 is true.
14. 3  need 5 * y, 2 * z not 5y and 2z.
15. 2  evaluates to false OR false AND false which is false.
16. 1  evaluates to false OR true which is true.

int 	uno = 1, dos = 2, tres = 3, quattro = 4;
infile >> uno >> dos;           //reads values 12, 13
infile.ignore(100, '\n');       //skips to beginning of line 2
infile >> tres >> quattro;      //reads values 7, 20
infile.ignore(100, '\n');       //skips to beginning of line 3
infile >> dos >> tres >> tres;  //reads values 9, 28, 41
infile.ignore(100, '\n');       //skips to beginning of line 4

17. 1  (For questions 17-20 see code comments above.)
18. 5  
19. 4
20. 3

int i1 = 17;
char ch1 = 'a', ch2 = 'b', ch3 = 'c';
iFile >> ch1;                   //reads '4'
iFile >> i1;                    //reads 3
iFile.get(ch2);                 //reads '\t'

21. 1  (For questions 21-22 see code comments above.)
22. 6

23. 4  4, 1, 4, 9 are read on the first iteration
24. 3  The outer if statement is true, D becomes 3
       the inner if statement is also true, D becomes 2

int anInt1, anInt2, anInt3;
float aFloat1, aFloat2;
fred >> anInt1 >> anInt2 >> aFloat1 >> anInt3;  //reads  53, -21, 17.9, 19
cout << anInt1 << anInt2 << aFloat1 << anInt3;  //writes 53, -21, 17.9, 19
fred.ignore(80, '\n');                          //skips to beginning of line 2
fred >> anInt3 >> aFloat2;                      //reads 2, 0.4
fred.ignore( 6, '\n');                          //skips 6 characters
fred >> anInt2;                                 //reads 12
cout << anInt3 << aFloat2 << anInt2;            //writes 2, 0.4, 12
       
25. 2  (For questions 25-28 see code comments above.)
26. 6  
27. 1
28. 7

29. 7  the else belongs to the inner if
30. 7  (K % 2 == 0) is true, alpha becomes 6
       K becomes 7
       (K % 2 == 0) is false, skips statement
       K becomes 8
       (K % 2 == 0) is true, alpha becomes 14
31. 4  Goes to 1, then 3, then 5, setting passed to 10.       
32. 1  there is no 4, so default is executed, passed is set to 0
33. 1  check for addition operation
34. 2  perform addition operation
35. 3  check for subtraction operation



Form B Key:

Q.No#   Answer	"Corresponding question in Form A"
 1	1		17
 2	5		18
 3	4		19
 4	3		20
 5	1		 8
 6	3		24
 7	3		 6
 8	4		 7
 9	4		23
10	1		21
11	6		22
12	2		25
13	6		26
14	1		27
15	7		28
16	4		31
17	1		32
18	7		30
19	7		29
20	1		13
21	3		14
22	2		15
23	1		16
24	2		 9
25	1		10
26	1		11
27	2		12
28	1		33
29	2		34
30	3		35
31	4		 5
32	3		 1
33	6		 2
34	5		 3
35	5		 4