Question bank

4,310 interview questions, answered.

Reference answers, what the interviewer is really testing, how it is graded, and the follow-ups that come next.

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58 questions

  1. 1Merge IntervalsMediumCoding· Blinkit, Docquity Holdings(PBS)
  2. 2Longest Increasing SubsequenceMediumCodingAI ML· Atlassian, Meta
  3. 3Group anagramsMediumCoding· Blinkit, MakeMyTrip
  4. 4Course ScheduleMediumCoding· Zoho
  5. 5Given the root of a binary tree of integers, return the maximum path sum.MediumCoding· Adobe, Apple
  6. 6How would you build a tool to authenticate products sold on TikTok Shop?HardProduct· TikTok
  7. 7Define success for TikTok.MediumDataBehavioral· TikTok
  8. 8Design a currency exchange system.HardSystem designTechnical· TikTok
  9. 9Design the 'For You' page on TikTok.HardSystem design· TikTok
  10. 10Design a Retrieval-Augmented Generation (RAG) system to help TikTok’s content moderation team detect and handle misinformation.HardAI MLProduct· TikTok
  11. 11Design a typeahead box for a search engine.HardSystem design· Adobe, Amazon
  12. 12Design a washing machine for Google.HardProduct· Google, TikTok
  13. 13Design a key-value store.HardSystem design· Accenture, Anthropic
  14. 14How would you determine the success of Instagram search?MediumData· TikTok
  15. 15How would you enhance Google Maps for individuals with disabilities?MediumProduct· TikTok
  16. 16Estimate the number of mutual follows an average TikTok user has.HardProduct· TikTok
  17. 17Find a triplet in an array with a given sum.MediumCoding· Adobe, Goldman Sachs
  18. 18What metrics would you focus on as the PM for an e-commerce store?MediumData· TikTok
  19. 19How do you prioritize trade-offs?MediumBehavioralProduct· Slack, TikTok
  20. 20How would you leverage discovery features like search to acquire users for TikTok Shop?MediumProduct· TikTok
  21. 21Implement LRU Cache.HardCoding· Accenture, Adobe
  22. 22Tell me about a time when you had to deal with conflicting priorities with your stakeholders and how you secured alignment with them.MediumBehavioralProduct· Amazon, Google
  23. 23Find the maximum subarray sum.MediumCoding· Adobe, Apple
  24. 24Merge k sorted linked lists.HardCoding· Adobe, Apple