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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2,498 questions

  1. 745Implement merge-sortMediumCoding· Walmart Labs
  2. 746Implement a phrase search in a list of documents.MediumCoding· Amazon, Confluent
  3. 747Implement a string sorting algorithm, treating digits as numbers.MediumCoding· Bolt
  4. 748Implement TrieMediumCoding· Apple, Goldman Sachs
  5. 749Implement wildcard pattern matching for a string (s) and a pattern (p) with '?' and '*' in a way that covers the entire input string.MediumCoding· Service Now
  6. 750You're given a time-based key-value store that keeps having new key-value pairs added. Implement a windowed average.MediumCoding· Confluent
  7. 751Why is it important for users to complete their LinkedIn profile? Discuss both user and enterprise perspectives.MediumProduct· LinkedIn
  8. 752What is more important—shipping product on time or shipping products with the right features?MediumBehavioral· Motorola
  9. 753What are the most important metrics for DoorDash?MediumData· Google
  10. 754You were hired by an airline consortium to improve the perception of air travel. What would you do with a budget of $10M in one year?MediumDataProduct· Stripe
  11. 755How can Airbnb improve its Open Homes product, which provides free shelter for refugees?MediumProduct· Airbnb
  12. 756How would you improve the airline boarding experience?MediumProduct· Zillow
  13. 757How would you improve airport layovers?MediumProduct· Meta
  14. 758How would you improve Amazon Go?MediumProduct· Amazon
  15. 759How would you improve Amazon's marketplace?MediumProduct· Amazon
  16. 760How would you improve shipment tracking on Amazon?MediumDataProduct· Amazon
  17. 761How would you improve the Amazon shopping experience?MediumProduct· Amazon
  18. 762How would you improve the design of Amazon's wishlist feature?MediumProductSystem design· Asana
  19. 763How would you improve Day One?MediumProduct· Google
  20. 764How would you improve DoorDash?MediumBehavioralProduct· DoorDash
  21. 765How would you improve the Doordash post-order experience?MediumProduct· DoorDash
  22. 766How would you improve driver retention for Lyft?MediumDataProduct· Lyft
  23. 767How would you improve engagement for the Truecaller app?MediumDataProduct· Truecaller
  24. 768How would you improve the experience of moving to a new city?MediumDataProduct· Microsoft