The hiring process was straightforward.

1. Case study
2. F2F interview.

I got into the first interview and explained my case study. The interviewer was satisfied. She asked a few simple DS and Algos questions, as well as simple Java questions. I was completely confident that I had cleared the interview, but suddenly HR came and said that I had not cleared the interview.

It looks like they are not looking for people who can answer their questions easily. I asked HR for feedback on where I was wrong in the interview, but they did not have an answer for it.

Very bad experience.

Reverse a singly linked list.

Find if tree1 is a subtree of tree2.

Some questions related to core Java, like static and final. Simple questions.

One question related to caching.