Subex Placement Paper -: Programming Questions With Answers

Subex Previous Years Solved Sample Placement Papers

1. What is the output of the following program?

   
   #include
   main() {
     int i, j, x = 0;
     for (i = 0; i < 5; ++i)
       for (j = 0; j < 5; ++j)
         x += (i + j - 1);
     printf("%d", x);
     break;
   }
       

   A. 1

   B. 0

   C. 2

   D. None of the above Answer: Option D

2. Solution: The program does not have a valid break statement inside a loop.
3. Consider the following:

   i. Pointer to a function that accepts 3 integer arguments and returns a floating-point quantity

   float(8pf)(int a, int b, int c)

   ii. Pointer to a function that accepts 3 pointers to integer quantities as arguments and returns a pointer to a floating-point quantity

   float *(*pf)(int *a, int *b, int *c);

   A. i is true, ii is true

   B. i is true, ii is false

   C. i is false, ii is false

   D. i is false, ii is true Answer: Option D

4. Consider the following statements:

   i. An integer quantity can be added to or subtracted from a pointer variable.

   ii. Two pointer variables can be added.

   iii. A pointer variable can be multiplied by a constant.

   iv. Two pointer variables of the same type can be subtracted.

   A. Only ii & iv are true

   B. Only iii is false

   C. Only ii is false Answer: Option C

   D. Only i & ii are true

5. If p is a pointer, what does p mean?

   A. Same as *(*p+i)

   B. Same as *(p+i) Answer: Option B

   C. Same as *p+i

   D. None of the above