Quora
19 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 1354. Construct Target Array With Multiple Sums | Hard | 100% | TopicsArrayHeap (Priority Queue) |
| 2080. Range Frequency Queries | Medium | 97.4% | TopicsArrayHash TableBinary SearchDesignSegment Tree |
| 1256. Encode Number | Medium | 94.5% | TopicsMathStringBit Manipulation |
| 1-bit and 2-bit Characters | Easy | 94.5% | TopicsArray |
| 1329. Sort the Matrix Diagonally | Medium | 94.5% | TopicsArraySortingMatrix |
| 1935. Maximum Number of Words You Can Type | Easy | 94.5% | TopicsHash TableString |
| 855. Exam Room | Medium | 94.5% | TopicsDesignHeap (Priority Queue)Ordered Set |
| 1281. Subtract the Product and Sum of Digits of an Integer | Easy | 94.5% | TopicsMath |
| 1295. Find Numbers with Even Number of Digits | Easy | 94.5% | TopicsArrayMath |
| 2269. Find the K-Beauty of a Number | Easy | 94.5% | TopicsMathStringSliding Window |
| 923. 3Sum With Multiplicity | Medium | 94.5% | TopicsArrayHash TableTwo PointersSortingCounting |
| 1876. Substrings of Size Three with Distinct Characters | Easy | 94.5% | TopicsHash TableStringSliding WindowCounting |
| 1878. Get Biggest Three Rhombus Sums in a Grid | Medium | 94.5% | TopicsArrayMathSortingHeap (Priority Queue)MatrixPrefix Sum |
| 1865. Finding Pairs With a Certain Sum | Medium | 94.5% | TopicsArrayHash TableDesign |
| Insert Delete GetRandom O(1) | Medium | 91.3% | TopicsArrayHash TableMathDesignRandomized |
| Text Justification | Hard | 83% | TopicsArrayStringSimulation |
| 297. Serialize and Deserialize Binary Tree | Hard | 77.5% | TopicsStringTreeDepth-First SearchBreadth-First SearchDesignBinary Tree |
| 14. Longest Common Prefix | Easy | 70.5% | TopicsArrayStringTrie |
| 560. Subarray Sum Equals K | Medium | 60.6% | TopicsArrayHash TablePrefix Sum |
