Citadel

Terribly difficult OA. 4 questions in 120 minutes. I was reading on Reddit, and the average solved is one question, and that's it. I have no idea who is expected to solve all of this, but who knows.

The overall approach was mostly a "medium binary search" over the solution space. It's definitely doable. Try to reach for the optimal solution, otherwise test cases will fail. It was a pleasant experience. Good luck to everybody.

Couple of behavioral questions, then straight into one technical problem. All done through CoderPad with a total time of 45 minutes. The difficulty was a LeetCode medium, while you explain your thought process while implementing.