Meta Software Developer interview questions

A employee from the Ads department invited me to talk on Skype on time, he first introduced what the Ads department do and then he offered a link to me to work on a coding problem. After finish, he asked me the time and space complexity, and opened to answer any questions I have.

Stage one was a phone screen, clearly intended to give them a feel for whether I can think on my feet or not. Then, a full day of interviews in the office - mixture of coding and culture fit interviews, where the culture fit interviews were done by underrepresented groups, and the coding interviews were mixed. Again, very clear that the goal was to get me a chance to sink or swim on my own merits. Coding interviews were split between coding on laptop and coding on whiteboard, to give me a chance to come back if I can't code on a whiteboard. That came back unsure, so I came in for one last interview session.