Robinhood
15 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 692. Top K Frequent Words | Medium | 100% | TopicsArrayHash TableStringTrieSortingHeap (Priority Queue)Bucket SortCounting |
| 1712. Ways to Split Array Into Three Subarrays | Medium | 95.3% | TopicsArrayTwo PointersBinary SearchPrefix Sum |
| 1743. Restore the Array From Adjacent Pairs | Medium | 95.3% | TopicsArrayHash TableDepth-First Search |
| Brightest Position on Street | Medium | 92.6% | TopicsArraySortingPrefix SumOrdered Set |
| 1711. Count Good Meals | Medium | 92.6% | TopicsArrayHash Table |
| 1801. Number of Orders in the Backlog | Medium | 92.6% | TopicsArrayHeap (Priority Queue)Simulation |
| 1391. Check if There is a Valid Path in a Grid | Medium | 92.6% | TopicsArrayDepth-First SearchBreadth-First SearchUnion-FindMatrix |
| Capital Gain/Loss | Medium | 92.6% | TopicsDatabase |
| 1684. Count the Number of Consistent Strings | Easy | 92.6% | TopicsArrayHash TableStringBit ManipulationCounting |
| Text Justification | Hard | 89.5% | TopicsArrayStringSimulation |
| Minesweeper | Medium | 76.5% | TopicsArrayDepth-First SearchBreadth-First SearchMatrix |
| 347. Top K Frequent Elements | Medium | 76.5% | TopicsArrayHash TableDivide and ConquerSortingHeap (Priority Queue)Bucket SortCountingQuickselect |
| Employee Importance | Medium | 69.8% | TopicsArrayHash TableTreeDepth-First SearchBreadth-First Search |
| 121. Best Time to Buy and Sell Stock | Easy | 60.4% | TopicsArrayDynamic Programming |
| 1108. Defanging an IP Address | Easy | 60.4% | TopicsString |
