Quora LeetCode Questions
19 questions all-time · 7 easy · 9 medium · 3 hard
| # | Problem | Difficulty | Frequency | Acceptance |
|---|---|---|---|---|
| 1 | Construct Target Array With Multiple Sums Array, Heap (Priority Queue) | Hard | 100 | 0.4% |
| 2 | Range Frequency Queries Array, Hash Table, Binary Search, Design, Segment Tree | Medium | 98 | 0.4% |
| 3 | Encode Number Math, String, Bit Manipulation | Medium | 96 | 0.7% |
| 4 | 1-bit and 2-bit Characters Array | Easy | 96 | 0.5% |
| 5 | Sort the Matrix Diagonally Array, Sorting, Matrix | Medium | 96 | 0.8% |
| 6 | Maximum Number of Words You Can Type Hash Table, String | Easy | 96 | 0.8% |
| 7 | Exam Room Design, Heap (Priority Queue), Ordered Set | Medium | 96 | 0.4% |
| 8 | Subtract the Product and Sum of Digits of an Integer Math | Easy | 96 | 0.9% |
| 9 | Find Numbers with Even Number of Digits Array, Math | Easy | 96 | 0.8% |
| 10 | Find the K-Beauty of a Number Math, String, Sliding Window | Easy | 96 | 0.6% |
| 11 | 3Sum With Multiplicity Array, Hash Table, Two Pointers, Sorting, Counting | Medium | 96 | 0.5% |
| 12 | Substrings of Size Three with Distinct Characters Hash Table, String, Sliding Window, Counting | Easy | 96 | 0.8% |
| 13 | Get Biggest Three Rhombus Sums in a Grid Array, Math, Sorting, Heap (Priority Queue), Matrix, Prefix Sum | Medium | 96 | 0.7% |
| 14 | Finding Pairs With a Certain Sum Array, Hash Table, Design | Medium | 96 | 0.6% |
| 15 | Insert Delete GetRandom O(1) Array, Hash Table, Math, Design, Randomized | Medium | 87 | 0.6% |
| 16 | Text Justification Array, String, Simulation | Hard | 79 | 0.5% |
| 17 | Subarray Sum Equals K Array, Hash Table, Prefix Sum | Medium | 74 | 0.5% |
| 18 | Longest Common Prefix Array, String, Trie | Easy | 67 | 0.5% |
| 19 | Serialize and Deserialize Binary Tree String, Tree, Depth-First Search, Breadth-First Search, Design, Binary Tree | Hard | 67 | 0.6% |
How to read this list
The tabs at the top split the questions by how recently people said they were asked in interviews. "Last 30 Days" is the past month, "Last 3 Months" is the past quarter, and so on. "All Time" is every question on record for this company.
Frequency is a score from 0 to 100 for how often a question showed up in that time window. A higher number means it came up more often, so the list starts with the most common questions first. Acceptance is the share of submissions that pass on LeetCode. Click any question to open it on LeetCode.