Building an app that allows friends to choose a midpoint between to reduce travel time for a specific activity. How would you support more than two friends? With one database per city, how would you scale as the app grows? How would you optimize the algorithm for suggested activities based on data provided? How would you handle private data and allowing users to customize what their friends see in the profile? Similar questions all the way through. Coding portion was implementing a function responsible for suggesting a midpoint based on a users coordinates and a number of filters. Not too bad once you understand what is being asked. Though there are a lot of assumptions that need to be made off jump to get through all 3 tasks within the time limit.
