After getting help from tons of interview posts and discussions, I decided to share my interview experience.

I gave an onsite for the hiring event. Prior to this, I was given an OA which had 3 easy to medium level questions.

For Onsite, there were total 4 rounds:

ROUND 1: https://leetcode.com/problems/second-minimum-node-in-a-binary-tree/solution/. I gave the recursive solution but the interviewer wanted the iterative one which I could only tell verbally in the last few minutes.

ROUND 2: You are given a String, e.g. "ABC-DEF", "XYZ-PQR", you need to print all number combinations it can have. Variation of: https://leetcode.com/problems/letter-combinations-of-a-phone-number/. I provided the solution and ran a few test cases. However, as the string was large, the output was truncated after printing upto a certain limit. The output was as expected for smaller strings. The interviewer wanted me to print all lines, so I verbally gave ran through the solution of storing it in a list.

ROUND 3: https://leetcode.com/problems/search-in-rotated-sorted-array/. Gave the solution, the interviewer was happy.

ROUND 4: There's a robot in the tunnel.
- The tunnel won't have a T junction
- There can be blocker in tunnel, if there is, you should choose to either turn right or turn left
- Robot can only move forward, it can access 3 APIs

boolean moveForward()
void turnLeft()
void turnRight()

Verify if the robot can reach the end of the tunnel. I was given Robot object as an input and can use the above function to make decision. Couldn't find similar leetcode problem. I thought of this as a line tracer, gave the solution and the interviewer accepted it.

Result: Recruiter reached out to me after 2 days and told me that I was almost there but the 2nd interviewer's decision was a no hire.

Thanks all.

YOE: 1+ , Location: Seattle