The interviewer wasn't nice, every second I stopped to think about the solution he would give another hint up until the point he answered the question by himself without giving me the opportunity to even think.

I got a HackerRank home assignment with 2 leetcode questions, one was easy the other was medium-hard. It was a sliding windows, and a buy n products with the minimum coins at start. There were 2 arrays, one of the WC cost of the products and one with the expected cost.