Two interviews, back to back, 30 minutes each. They were reasonably difficult, but nothing too difficult. Given the time constraint, it can be very hard to get through all the questions.
Post-interview however, the recruiter took us out to dinner.
Typical types of tree questions include finding the maximum tree length, the closest path to various sets of nodes, and efficiently detecting the levels of all nodes.
The following metrics were computed from 112 interview experiences for the Meta Software Engineer Intern role in United States.
Meta's interview process for their Software Engineer Intern roles in the United States is fairly selective, failing a large portion of engineers who go through it.
Candidates reported having very good feelings for Meta's Software Engineer Intern interview process in United States.