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.

Easy 190Medium 2,498Hard 982
Filters · onDifficulty, topic, company
Clear all

78 questions

  1. 49Write a function to print 1 to n without using a loop.EasyCoding· Nvidia
  2. 50Reverse a SentenceEasyCoding· Adobe, Apple
  3. 51Reverse a linked list.EasyCoding· Adobe, Apple
  4. 52Find the smallest missing element from a sorted array.EasyCodingTechnical· Meta
  5. 53How would you perform a lookup in SQL?EasyCoding· LinkedIn
  6. 54Total Outfit CombinationsEasyCoding· Oracle
  7. 55Tree Node.EasyCodingData· Google
  8. 56Valid ParenthesesEasyCoding· Apple, Booking.com
  9. 57Is this a valid palindrome?EasyCoding· Adobe, Apple
  10. 58Write a program to count the frequency of each character in a given text file.EasyCodingTechnical· Andela
  11. 59E-commerce (2 of 5)EasyCodingData
  12. 60Implement K-Means ClusteringEasyCodingAI ML
  13. 61Biased Coin Flip HistogramEasyCoding
  14. 62Check if two given binary trees are identical.EasyCoding
  15. 63Difference of ArraysEasyCoding
  16. 64E-commerce (1 of 5)EasyCodingData
  17. 65E-commerce (4 of 5)EasyCodingData
  18. 66Find Average Purchase Value.EasyCodingData
  19. 67Find the first repeated character in a given string.EasyCoding
  20. 68Find the Smallest Missing IntegerEasyCoding
  21. 69High Volume Low Success.EasyCodingData
  22. 70Items on SaleEasyCodingData
  23. 71Lowest Earning EmployeesEasyCodingData
  24. 72Lyft Ride RequestsEasyCodingData