Meta DSA Interview Questions

What Meta asks in the DSA round

Meta interviews are speed-driven: two problems in 45 minutes. Trees, graphs, and string/array manipulation dominate, and clean bug-free code on the first pass is weighted heavily.

Across the 1403 questions on this page, the weight sits on these patterns:

• Dynamic Programming — 201 questions · read the dynamic programming guide
• Greedy — 105 questions · read the greedy guide
• Breadth-First Search — 95 questions · read the breadth first search (bfs) guide
• Binary Search — 85 questions · read the modified binary search guide
• Database — 80 questions
• Math — 80 questions
• Two Pointers — 69 questions · read the two pointers guide
• Depth-First Search — 63 questions · read the depth first search (dfs) guide

How to prepare for the Meta interview

1. 1. Start at the top of the list above. The patterns are ordered by how often Meta uses them, so the first two or three buy you the most coverage per hour.
2. 2. Solve by pattern, not at random. Doing eight dynamic programming problems in a row is what makes the ninth recognisable in an interview — jumping between topics does not.
3. 3. Tick problems off as you go so the gaps are visible. The per-pattern counts tell you which Meta topic you have actually covered.
4. 4. Write the approach before the code. Meta interviews are judged on the reasoning as much as the working solution.
5. 5. Pair this with the pattern guides when a topic is new, and the system design sheet if the role is senior enough to have that round.
6. 6. If this is a campus or off-campus drive rather than a lateral move, the placement preparation guide covers the stages around the DSA round — aptitude, core subjects and the HR interview — in the order they actually happen.

Meta interview questions — FAQ

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