Facebook Interview Questions

7 questions available. Practice with AI-powered feedback.

Other companies

coding
Meta
Facebook

Meta Coding Interview: Max-Unique-Characters Subset (Bitmask)

Solve a Meta coding question: fix word_to_mask and implement max_unique_chars_subset using bitmasks and backtracking to maximize distinct digits/letters. Try it now.

Software Engineer, Backend EngineerEntry Level
coding
Meta
Facebook

Meta Coding Question: Indent Root-to-Leaf Paths by Column

Print root-to-leaf paths with per-path column shifts and indentation. See DFS approach, implementation tips, and complexity notes — try this Meta coding question now.

Software Engineer, Backend EngineerEntry Level
ml system design
Meta
Facebook

Meta ML System Design: Real-Time Personalized Feed Ranking

Build a real-time personalized ranking system for Meta's news feed. Learn low-latency serving, online updates, cold-start handling, diversity, and A/B testing.

Machine Learning Engineer, ML EngineerMid Level
online assessment
Meta
Facebook

Meta Online Coding Assessment: Simplify Unix File Path

Simplify Unix Path (Meta): stack-based parsing to handle '.', '..', and repeated slashes. Steps, complexity, edge-case tips — code it now. Try examples & tests.

Software Engineer, Backend EngineerEntry Level
backend system design
Meta
Facebook
Instagram

Meta System Design: Real-Time Ad Auction Platform

Design a low-latency, scalable real-time ad auction platform for Meta. Learn auction flow, RTB, relevance scoring, and latency tactics—prepare for interviews.

Software Engineer, Backend EngineerMid Level
coding
Pinterest
Google
Facebook

Pinterest Coding Question: Top K Frequent Elements

Solve Pinterest coding problem: Top K Frequent Elements. Compare counting, heap and bucket methods, review complexity, and get concise interview tips now.

Machine Learning Engineer, Software EngineerEntry Level
ml coding
Meta
Facebook

Scaled Self-Attention Implementation — Meta

Implement scaled self-attention for Transformers: compute attention outputs and per-query weights from Q, K, V with masking and numerical-stability. Try coding

Machine Learning Engineer, ML EngineerEntry Level

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