Two Coding Problems
105 minutes to solve, explain my solution and running time
I ran out of time to solve the 2nd one optimally since I also had to allocate my time to thoroughly write my explanation.
One thing I would advise, and I wish I did now that it passed, is if you know the optimal solution but don't have the time to implement it, make sure to detail that in the writing portion! Amazon also looks to see your thought and communication process through the written portion.