Meta ML & AI interview questions.
Questions in the CrackML corpus associated with Meta. Use company evidence as a prioritization signal, not a promise that an exact question will repeat.
Improve Instagram comment rankingML System Design · hard · Evidence 77/100Count and SayPython & DSA · medium · Evidence 77/100K Closest Points to OriginPython & DSA · medium · Evidence 77/100Validate a NumberPython & DSA · medium · Evidence 77/100Simplify a Relative PathPython & DSA · medium · Evidence 77/100Add/Subtract Operators to Reach a TargetPython & DSA · hard · Evidence 77/100Remove Invalid ParenthesesPython & DSA · hard · Evidence 77/100Robot Cleaner: Find the CheesePython & DSA · hard · Evidence 77/1003SumPython & DSA · medium · Evidence 77/100Sliding Window AveragePython & DSA · easy · Evidence 77/100Tree DiameterPython & DSA · medium · Evidence 77/100Random pick with weightPython & DSA · medium · Evidence 77/100Valid Word AbbreviationPython & DSA · easy · Evidence 77/100Basic Calculator With + and *Python & DSA · medium · Evidence 77/100Second Greatest Number From DigitsPython & DSA · medium · Evidence 77/100Subarray Sum Equals KPython & DSA · medium · Evidence 77/100Rank nearby places beyond distanceML System Design · hard · Evidence 77/100Design local search rankingML System Design · medium · Evidence 77/100Next Greater ElementPython & DSA · medium · Evidence 77/100Moving average from a data streamPython & DSA · easy · Evidence 77/100Design Nearby Places RecommendationsML System Design · hard · Evidence 77/100Predict whether an old post is good for MemoriesML System Design · medium · Evidence 77/100Predict the language of Instagram postsML System Design · medium · Evidence 77/100Count Monotonic RunsPython & DSA · medium · Evidence 77/100Lowest Common Ancestor of a Binary TreePython & DSA · medium · Evidence 77/100LRU Cache With Delete and LastPython & DSA · medium · Evidence 77/100Binary Tree Vertical Order TraversalPython & DSA · medium · Evidence 77/100Add Decimal Numbers as StringsPython & DSA · medium · Evidence 77/100Design News Feed rankingML System Design · medium · Evidence 77/100Palindrome PermutationPython & DSA · easy · Evidence 77/100Find the Kth largest element in an array.Python & DSA · medium · Evidence 70/100Find the maximum number of consecutive ones in a binary array.Python & DSA · easy · Evidence 70/100Find the maximum water level that still permits a path from start to end.Python & DSA · hard · Evidence 70/100Navigate a mouse to cheese using only an API that tells whether a move is valid.Python & DSA · hard · Evidence 70/100Design a short-video recommendation system similar to Reels.ML System Design · hard · Evidence 70/100Design People You May KnowML System Design · hard · Evidence 41/100Large-Scale Weighted Random SamplingML Coding & PyTorch · hard · Evidence 41/100Design Global Search for Ephemeral Status PostsML System Design · hard · Evidence 41/100Design a Bot-Post Detection PipelineML System Design · hard · Evidence 41/100How would you use a two-tower model for candidate retrieval?ML System Design · hard · Evidence 37/100Tell me about a failed project and what you changed afterward.Project & Behavioral · medium · Evidence 37/100Tell me about a time you pushed back without formal authority.Project & Behavioral · medium · Evidence 37/100Walk through a past ML project end to end and defend your technical choices.Project & Behavioral · hard · Evidence 37/100Tell me about a difficult coworker and how you handled the situation.Project & Behavioral · medium · Evidence 37/100How would you evaluate a video recommender offline and online?ML System Design · hard · Evidence 37/100How would you choose features for a short-video recommendation system?ML System Design · medium · Evidence 37/100Countering OverfittingML Fundamentals · medium · Evidence 34/100Explain precision vs recall and when each mattersML Fundamentals · medium · Evidence 31/100