TPS1: leetcode questions, which I didn't realize until later as I don't like to remember how to do it from standard leetconde answer. I think if you are familiar with function and data manipulation you will be ok to solve the questions. Also, there are some statistical analysis questions. TPS2: real challenging Uber optimization question, you have to make sure you know all the detail before proposing your solution. Make sure the interviewer does not misunderstand you, otherwise it could leave a wrong impression during the interview process.
