• For the design task, I was asked to create a table for a college with various departments and professors, then find the maximum salary in each department – a direct question.

• When discussing constructors and destructors, I mentioned that they can be called explicitly, but she seemed uncertain about that.

• She asked if a string of characters could be used to create a document—a straightforward question.

• Another task involved finding the k-th element from the back of a a linked list.

• Finally, she asked me to design a parking space allotment system without specifying that it was a system design question, which was the most vague question of all.

The task is finding the k-th element from the back of a linked list.