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50 questions

  1. 1Climbing StairsEasyCoding· Media.net
  2. 2Merge IntervalsMediumCoding· Blinkit, Docquity Holdings(PBS)
  3. 3Group anagramsMediumCoding· Blinkit, MakeMyTrip
  4. 4Tell me about a time when you made a decision without sufficient customer data.MediumBehavioral· Amazon, Walmart Labs
  5. 5Design the best slippers.MediumSystem design· Walmart Labs
  6. 6Explain how you would design Google Play Store, including your choice of database, its structure, and rationale.HardSystem designTechnical· Walmart Labs
  7. 7Design Lyft for kids.HardProduct· Lyft, Walmart Labs
  8. 8Design a reservation and payment system for a parking garage.HardSystem design· Amazon, AtoB
  9. 9Design a taxi recommendation system for airports.HardSystem design· Walmart Labs
  10. 10Design TikTok.HardSystem design· Google, Meta
  11. 11Explain the differences between an interface and an abstract class.MediumCodingTechnical· Goldman Sachs, Microsoft
  12. 12Find a triplet in an array with a given sum.MediumCoding· Adobe, Goldman Sachs
  13. 13Generate ParenthesesMediumCoding· Adobe, Google
  14. 14Given n houses in a line with money in each, find the maximum amount a robber can steal, without stealing from two adjacent houses.MediumCoding· Adobe, Apple
  15. 15How would you improve walmart.com?MediumProduct· Walmart Labs
  16. 16Implement merge-sortMediumCoding· Walmart Labs
  17. 17You are working for a retail company that wants to improve user engagement on a telemedicine platform by leveraging their retail data. What is your approach?HardDataProduct· Walmart Labs
  18. 18How would you improve retention on LinkedIn?MediumDataProduct· Walmart Labs
  19. 19What are the key KPIs for an adtech platform and why?MediumData· Walmart Labs
  20. 20Find the longest substring without repeating characters.MediumCoding· Apple, Intuit
  21. 21Implement LRU Cache.HardCoding· Accenture, Adobe
  22. 22Find the maximum subarray sum.MediumCoding· Adobe, Apple
  23. 23Merge k sorted linked lists.HardCoding· Adobe, Apple
  24. 24Tell me about a mistake you made and what you learned from it.MediumBehavioral· Discord, Meta