55+ Recently Asked Problems in Airbnb in Last 6 Months

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Some problem were asked exactly same as available on Leetcode and some of them were similar or variations of the problems available.

Easy Problems –

  1. Bulls and Cows
  2. Contains Duplicate II
  3. Valid Parentheses
  4. Intersection of Two Linked Lists
  5. Happy Number
  6. Merge Two Sorted Lists
  7. Single Number
  8. Convert Sorted Array to Binary Search Tree
  9. Contains Duplicate
  10. Verifying an Alien Dictionary
  11. Reverse Bits
  12. Add Strings

Medium Problems –

  1. Pour Water
  2. IP to CIDR
  3. Flatten 2D Vector
  4. Design File System
  5. Cheapest Flights Within K Stops
  6. Flatten Nested List Iterator
  7. Fraction to Recurring Decimal
  8. Combination Sum
  9. Wiggle Sort II
  10. Koko Eating Bananas
  11. Minimize Rounding Error to Meet Target
  12. Pyramid Transition Matrix
  13. Smallest Common Region
  14. Coin Change
  15. Add Two Numbers
  16. Mini Parser
  17. Longest Palindromic Substring
  18. Contains Duplicate III
  19. Wiggle Sort
  20. Lowest Common Ancestor of a Binary Tree
  21. Kth Largest Element in an Array
  22. Design Circular Queue
  23. Maximal Square
  24. Add and Search Word – Data structure design
  25. Find First and Last Position of Element in Sorted Array
  26. Basic Calculator II
  27. Convert to Base -2
  28. Robot Bounded In Circle

Hard Problems –

  1. Design In-Memory File System
  2. Minimum Number of Flips to Convert Binary Matrix to Zero 3. Matrix
  3. Maximum Candies You Can Get from Boxes
  4. Merge k Sorted Lists
  5. Median of Two Sorted Arrays
  6. Minimum Window Substring
  7. Maximum Profit in Job Scheduling
  8. Regular Expression Matching
  9. Word Search II
  10. Guess the Word
  11. Shortest Path to Get All Keys
  12. Employee Free Time
  13. Trapping Rain Water
  14. Sliding Puzzle
  15. Text Justification
  16. Alien Dictionary
  17. Palindrome Pairs

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