There were two rounds scheduled, but no details were provided.

A two-hour slot was booked on the calendar.

In the first round, the interviewer asked a simple palindrome question. Then, they asked two more questions, which I couldn't determine if they were puzzles or design questions.

I answered the first data structure/algorithm question within 15 minutes. The interviewer did not attempt to explain the other questions.

He concluded the interview in half an hour. Shortly after, I received an email from the recruiter stating they were not proceeding with my candidature.

I requested detailed feedback from the panel but did not receive any. The interviewer also appeared uninterested during the interview.

1. Given an integer, determine whether it is a palindrome or not.

2. Two people are standing opposite each other with a wall between them. They cannot see each other. A person standing at the end of the wall can see both. How can you relate this situation?

3. In a city with n traffic lights, how can you design and make connected traffic signals green for the best traffic flow?