Capital One Interview Question

Code Screen: I won't put the actual questions here, but the code screen was 4 algorithm (LeetCode style) questions that you have to implement over the course of an hour. I don't think you have to finish the whole thing to pass, but the first two are very simple and should only take a moderate coder 15-20 minutes at most. The third one was also a simple solution but took a little longer to implement. The fourth question was the only one that had constraints that prevented me from using the simplest brute force solution.