The interview process was very standard. There were a few rounds of technical interviews, and then a call with the recruiter. Nothing was out of the ordinary. Overall, it was a very quick and efficient process.

1. Given a list of non-unique integers and a target value, return the count of how many pairs of integers sum to the target value.

2. Write a square root function (without using a built-in or library square root function).

3. Given a sorted linked list, remove all duplicate nodes.

4. Implement a class that uses entry/exit swipe information (card, swipe, station) to answer queries of average transit time between pairs of stations (design and implement API).