Snowflake
100 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 347. Top K Frequent Elements | Medium | 66.8% | TopicsArrayHash TableDivide and ConquerSortingHeap (Priority Queue)Bucket SortCountingQuickselect |
| 981. Time Based Key-Value Store | Medium | 63.3% | TopicsHash TableStringBinary SearchDesign |
| Boundary of Binary Tree | Medium | 63.3% | TopicsTreeDepth-First SearchBinary Tree |
| 2851. String Transformation | Hard | 63.3% | TopicsMathStringDynamic ProgrammingString Matching |
| 1353. Maximum Number of Events That Can Be Attended | Medium | 63.3% | TopicsArrayGreedySortingHeap (Priority Queue) |
| Shortest Word Distance | Easy | 63.3% | TopicsArrayString |
| 21. Merge Two Sorted Lists | Easy | 59.2% | TopicsLinked ListRecursion |
| 146. LRU Cache | Medium | 59.2% | TopicsHash TableLinked ListDesignDoubly-Linked List |
| 1639. Number of Ways to Form a Target String Given a Dictionary | Hard | 59.2% | TopicsArrayStringDynamic Programming |
| Basic Calculator | Hard | 59.2% | TopicsMathStringStackRecursion |
| 621. Task Scheduler | Medium | 59.2% | TopicsArrayHash TableGreedySortingHeap (Priority Queue)Counting |
| 138. Copy List with Random Pointer | Medium | 59.2% | TopicsHash TableLinked List |
| 211. Design Add and Search Words Data Structure | Medium | 59.2% | TopicsStringDepth-First SearchDesignTrie |
| 1233. Remove Sub-Folders from the Filesystem | Medium | 59.2% | TopicsArrayStringDepth-First SearchTrie |
| Web Crawler Multithreaded | Medium | 59.2% | TopicsDepth-First SearchBreadth-First SearchConcurrency |
| 1751. Maximum Number of Events That Can Be Attended II | Hard | 59.2% | TopicsArrayBinary SearchDynamic ProgrammingSorting |
| Web Crawler | Medium | 59.2% | TopicsStringDepth-First SearchBreadth-First SearchInteractive |
| Design Hit Counter | Medium | 54.1% | TopicsArrayBinary SearchDesignQueueData Stream |
| Insert Delete GetRandom O(1) | Medium | 54.1% | TopicsArrayHash TableMathDesignRandomized |
| 706. Design HashMap | Easy | 54.1% | TopicsArrayHash TableLinked ListDesignHash Function |
| 155. Min Stack | Medium | 54.1% | TopicsStackDesign |
| 1146. Snapshot Array | Medium | 54.1% | TopicsArrayHash TableBinary SearchDesignPersistent Data Structure |
| 849. Maximize Distance to Closest Person | Medium | 54.1% | TopicsArray |
| 540. Single Element in a Sorted Array | Medium | 54.1% | TopicsArrayBinary Search |
| Design Log Storage System | Medium | 54.1% | TopicsHash TableStringDesignOrdered Set |
