3 algorithmic questions
I say algorithmic because the coding questions are one-size fits all. They are designed for Python programmers. If you write the code in C, it doesn't give the interviewer any indication about your deeper understanding of C programming. (such as defensive programming, memory management, dangling pointers, cache efficiency, etc)
In most of the interviews, I couldn't get straight answer for my clarification questions. It is always, however you like it. An important part of system design is to understand the constraints of the system and plan accordingly. When I am not given any constraints, this means I can write whatever I want. They failed to measure this skill.
The algorithmic coding questions were not structured properly (no multi-part questions). It seems like they have no way of making it easier or more difficult. When I finished the problem with the optimal solution, the interviewer asked some weird questions instead of giving me a challenge.