I got a call from a consultancy and attended an interview on a Saturday. There was too much rush. There was an online test and a written test, and I cleared both successfully. They said they would call by next week, but I didn't receive any call for 20 days. After 3 weeks, I got a call, and they conducted a telephonic interview, which I successfully cleared. Then, they called me for a face-to-face interview the following Saturday. Upon reaching the venue, they asked me to attend the same written and online test again. I told them I had already cleared them. Somehow, they managed to get my previous results and sent me for two rounds of face-to-face interviews, both of which I cleared. Then they said they would call on Monday, and that Monday hasn't come yet. It was good practice for my skills. I did a lot of preparation to attend this interview, which helped me clear other interviews, but otherwise, it was a waste of time.

Binary search.

Deletion from a binary search tree.

Multiple inheritance.

What if you make a parameterized constructor private? Will the compiler give you a default constructor?