Overall, the experience was good. I received a gift bag upon arriving at the hotel.

The interview process was long. I was interviewed for four hours in the morning, and then went to lunch with two employees. In the afternoon, I met another two people, and the process finally concluded after speaking with HR.

However, the confusing part was that some interviewers were not professional, which made me want to leave as soon as possible, especially since I had already received an offer from another company.

Some of the interview problems included:

• How to compress a prefix tree?
• Roman numeral to integer and integer to Roman numeral conversion.

How to compress a prefix tree?