Top Twitter Questions

# Title Frequency Solution Acceptance Difficulty
# Title Frequency Solution Acceptance Difficulty
12 Integer to Roman 96 45.7%
20 Valid Parentheses 95 33.7%
206 Reverse Linked List 94 Link 46.3%
146 LRU Cache 94 18.9%
23 Merge k Sorted Lists 92 Link 27.8%
42 Trapping Rain Water 91 Link 37.3%
10 Regular Expression Matching 89 Link 24.3%
202 Happy Number 89 41.1%
149 Max Points on a Line 88 15.2%
56 Merge Intervals 85 Link 31.2%
118 Pascal's Triangle 83 Link 39.4%
235 Lowest Common Ancestor of a Binary Search Tree 79 39.5%
433 Minimum Genetic Mutation 79 34.1%
43 Multiply Strings 74 27.7%
218 The Skyline Problem 73 28.4%
140 Word Break II 69 Link 24.0%
341 Flatten Nested List Iterator 62 42.4%
208 Implement Trie (Prefix Tree) 61 Link 29.8%
44 Wildcard Matching 56 20.7%
296 Best Meeting Point 56 Link 52.1%
60 Permutation Sequence 52 29.1%
378 Kth Smallest Element in a Sorted Matrix 52 45.2%
269 Alien Dictionary 51 25.5%
161 One Edit Distance 50 31.6%
380 Insert Delete GetRandom O(1) 50 39.5%
251 Flatten 2D Vector 45 41.1%
407 Trapping Rain Water II 32 37.8%
355 Design Twitter 28 25.7%
468 Validate IP Address 19 20.8%
323 Number of Connected Components in an Undirected Graph 14 48.5%
580 Count Student Number in Departments 12 Link 38.5%
608 Tree Node 11 Link 54.3%
585 Investments in 2016 7 Link 44.9%
586 Customer Placing the Largest Number of Orders 6 Link 56.8%
# Title Frequency Solution Acceptance Difficulty
# Title Frequency Solution Acceptance Difficulty
296 Best Meeting Point 56 Link 52.1%
269 Alien Dictionary 51 25.5%
161 One Edit Distance 50 31.6%
251 Flatten 2D Vector 45 41.1%
323 Number of Connected Components in an Undirected Graph 14 48.5%
580 Count Student Number in Departments 12 Link 38.5%
608 Tree Node 11 Link 54.3%
585 Investments in 2016 7 Link 44.9%
586 Customer Placing the Largest Number of Orders 6 Link 56.8%