There will be two questions.
One will likely involve Binary Search Trees (BSTs) or Graphs. The other will involve strings or arrays.
The interviewer tends to get into the questions pretty quickly, so don't expect much small talk. They are under a tight schedule.
Write a function that balances a BST given a root node.
The following metrics were computed from 1,861 interview experiences for the Meta Software Engineer role in United States.
Meta's interview process for their Software Engineer roles in the United States is extremely selective, failing the vast majority of engineers.
Candidates reported having very good feelings for Meta's Software Engineer interview process in United States.