There were two F2F rounds. The first was just a check of the subject's aptitude, while the second was thorough. It was a well-designed process. The interviewer first finalized the topic of discussion, and then questions were asked. So, it's better to be cautious before agreeing. I was interviewed for IMS, with a 50-50% split between maintenance and development tasks.

Round One:

1. Find the minimum and maximum of an array in only one traversal.
2. Given a chessboard, find the maximum number of squares present.
3. Job description.
4. Difference between deep and shallow copy.
5. What is C++?
6. What is "preinitialization"?

Round Two:

1. Reverse a linked list. 1.1 Use recursion.

2. Copy constructor and operator=; discuss different use cases and provide code.

3. Deep copy and shallow copy: discuss used cases.

4. Different versions of polymorphism and how to solve the problem of multiple inheritance.

5. Deep dive into virtual concepts and inheritance.

6. Template classes: Write a program for an operator= for a template class such that it behaves differently for int and char*.

7. Given a tree, write a program to generate a matrix such that: Tree: 1 /
   2 3 | /
   4 5 6

   Matrix: 1 2 3 4 5 6 1 0 1 1 1 1 1 2 0 0 0 1 0 0 3 0 0 0 0 1 1 4 0 0 0 0 0 0 5 0 0 0 0 0 0 6 0 0 0 0 0 0

   Hint: Preorder.

8. Given an array: 1 2 0 5 4 88 0 0 0 6, make it 1 2 5 4 88 6 0 0 0 0.

9. Provide a class hierarchy and list the number of VTables created.

10. When to use list and when to use vector from the STL.

11. Given a string "I LOVE INDIA", print "INDIA LOVE I".