The first round was an online assessment on CodeSignal. This assessment featured some real problems to solve, not LeetCode-type questions. I enjoyed solving them and received positive feedback, leading to the scheduling of the next round.

I confirmed the format of this second round with the interviewer. I asked if it would be the same type of assessment with real coding problems or LeetCode-type questions. He confirmed that there would not be LeetCode-type or tricky questions.

I appeared for the second round and, to my surprise, the interviewer asked me a LeetCode medium problem. Isn't that strange?

There is nothing inherently wrong with asking LeetCode-type problems. The only concern is that candidates prepare their minds for a specific format. What you are asked in an interview can differ from what you do in a real project. Nevertheless, I loved the questions asked in CodeSignal.

The recruiter shared the feedback and asked about my availability to discuss it. I shared my availability, but they never responded to that email.

You may be asked to solve LeetCode medium questions.