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360. Sliding Window Median 364. Trapping Rain Water II 391. Number of Airplanes in the Sky 133. Longest Words 387. The Smallest Difference 386. Longest Substring with At Most K Distinct Characters 249. Count of Smaller Number before itself 367. Expression Tree Build 370. Convert Expression to Reverse Polish Notation 131. The Skyline Problem 248. Count of Smaller Number 22. Flatten List 368. Expression Evaluation 362. Sliding Window Maximum 247. Segment Tree Query II 207. Interval Sum II 206. Interval Sum 205. Interval Minimum Number 203. Segment Tree Modify 202. Segment Tree Query 201. Segment Tree Build 185. Matrix Zigzag Traversal 182. Delete Digits 132. Word Search II 130. Heapify 129. Rehashing 127. Topological Sorting 125. Backpack II 92. Backpack 91. Minimum Adjustment Cost 90. k Sum II 89. k Sum 88. Lowest Common Ancestor 87. Remove Node in Binary Search Tree 86. Binary Search Tree Iterator 85. Insert Node in a Binary Search Tree 84. Single Number III 81. Data Stream Median 80. Median 79. Longest Common Substring 78. Longest Common Prefix 77. Longest Common Subsequence 76. Longest Increasing Subsequence 75. Find Peak Element 74. First Bad Version 55. Compare Strings 52. Next Permutation 51. Previous Permutation 50. Product of Array Exclude Itself 49. Sort Letters by Case 48. Majority Number III 47. Majority Number II 46. Majority Number 45. Maximum Subarray Difference 44. Minimum Subarray 43. Maximum Subarray III 42. Maximum Subarray II 41. Maximum Subarray 40. Implement Queue by Two Stacks 4. Ugly Number II
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  • 10 Google
  • 6 Microsoft
  • 4 Facebook
  • 3 LinkedIn
  • 3 Zenefits
  • 2 Yelp
  • 2 Twitter
  • 1 Coupang
  • 1 Airbnb
  • 1 Amazon