Sapient Placement Paper -: Programming Questions With Answers

Sapient Previous Years Solved Sample Placement Papers

1. int main() { struct myStruct ms = {400, 'A'}; printf("%d %d", ptr->a, ptr->b); return 0; }

   A. 400 A

   B. 400 65

   C. 400 97

   D. 0 0 Answer: Option D

2. Solution: In this program, the pointer `ptr` is declared but never initialized. Accessing uninitialized pointers leads to undefined behavior. The program outputs `0 0` because the pointer does not point to valid memory.
3. What will be the output of the following program?
   

       #include 
   
       typedef struct stu1 {
           int roll;
           char *name;
           double marks;
       } STU1;
   
       typedef struct stu2 {
           int roll;
           char *name;
           double marks;
       } STU2;
   
       void main() {
           STU1 s1 = {25, "Rohit", 87.43}, *p1;
           STU2 *p2;
           p1 = &s1;
           memcpy(p2, p1, 4);
           printf("Roll : %d\n", p2->roll);
           printf("Name : %s\n", p2->name);
           printf("Marks : %lf\n", p2->marks);
       }
       

   A. Roll : 25 Name : Rohit Marks : 87.430000

   B. Roll : 25 Name : Rohit Marks : 0.000000 Answer: Option B

   C. Roll : 0 Name : Rohit Marks : 87.430000

   D. Roll : 0 Name : null Marks : 0.000000

4. Solution: The `memcpy` function is used to copy memory. However, the pointer `p2` is not initialized, so it points to an invalid memory location. As a result, the `marks` value is overwritten as `0.000000`, and the output is incorrect.