Meta Interview Questions
The questions to prepare for Meta interviews, across all roles. Questions from real interview reports rank first. Updated daily.
Problem In Meta Messenger infrastructure, tree-shaped data may need to be converted into a string for transport and rebuilt later. Implement functions to s...
MetaProblem At Meta, imagine multiple pre-sorted event streams need to be combined into one ordered feed. Given k sorted singly linked lists, merge them into o...
MetaMerge k sorted lists into one sorted list using a min-heap for O(n log k) time.
MetaReverse a singly linked list in place using pointer manipulation.
MetaCompute daily active users and a 7-day rolling average using a CTE, distinct counts, and window functions.
MetaCompute daily distinct active users and a 7-day rolling average using a CTE and window function.
MetaCalculate month-1 retention for January vs February signup cohorts using joins, date filtering, and aggregation.
MetaCalculate daily friend request acceptance rate using a CTE, date extraction, and grouped aggregations.
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