Jerry Interview Question

In technical round for the algorithm, they asked a medium difficulty question on arrays. You can use priority queues to solve it. They look at your reasoning. If you do some leetcode, the question shouldn't be hard for you. It was 45min. The other technical round was system design, where they ask you to design YouTube recommendation system. You are free to use tools of your choice to demonstrate your design. It is pretty open ended questions. This was also 45 min.