Roblox
58 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 543. Diameter of Binary Tree | Easy | 62.1% | TopicsTreeDepth-First SearchBinary TreeDP on Trees |
| Integer to English Words | Hard | 55.3% | TopicsMathStringRecursion |
| Brightest Position on Street | Medium | 55.3% | TopicsArraySortingPrefix SumOrdered Set |
| 992. Subarrays with K Different Integers | Hard | 55.3% | TopicsArrayHash TableSliding WindowCounting |
| 2672. Number of Adjacent Elements With the Same Color | Medium | 55.3% | TopicsArray |
| 1861. Rotating the Box | Medium | 55.3% | TopicsArrayTwo PointersMatrix |
| 933. Number of Recent Calls | Easy | 55.3% | TopicsDesignQueueData Stream |
| Simplify Path | Medium | 55.3% | TopicsStringStack |
| Implement Trie (Prefix Tree) | Medium | 50.9% | TopicsHash TableStringDesignTrie |
| 3043. Find the Length of the Longest Common Prefix | Medium | 50.9% | TopicsArrayHash TableStringTrie |
| 1. Two Sum | Easy | 50.9% | TopicsArrayHash Table |
| 42. Trapping Rain Water | Hard | 50.9% | TopicsArrayTwo PointersDynamic ProgrammingStackMonotonic Stack |
| 2502. Design Memory Allocator | Medium | 50.9% | TopicsArrayHash TableDesignSimulation |
| 56. Merge Intervals | Medium | 45.1% | TopicsArraySortingQuicksort |
| 2537. Count the Number of Good Subarrays | Medium | 45.1% | TopicsArrayHash TableSliding Window |
| 3459. Length of Longest V-Shaped Diagonal Segment | Hard | 45.1% | TopicsArrayDynamic ProgrammingMemoizationMatrix |
| Closest Binary Search Tree Value | Easy | 45.1% | TopicsBinary SearchTreeDepth-First SearchBinary Search TreeBinary Tree |
| 14. Longest Common Prefix | Easy | 37.1% | TopicsArrayStringTrie |
| 1419. Minimum Number of Frogs Croaking | Medium | 37.1% | TopicsStringCounting |
| 54. Spiral Matrix | Medium | 37.1% | TopicsArrayMatrixSimulation |
| 3. Longest Substring Without Repeating Characters | Medium | 37.1% | TopicsHash TableStringSliding Window |
| Image Smoother | Easy | 37.1% | TopicsArrayMatrix |
| 1743. Restore the Array From Adjacent Pairs | Medium | 37.1% | TopicsArrayHash TableDepth-First Search |
| 1814. Count Nice Pairs in an Array | Medium | 37.1% | TopicsArrayHash TableMathCounting |
| Insert Delete GetRandom O(1) | Medium | 37.1% | TopicsArrayHash TableMathDesignRandomized |
