Bloomberg
1239 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 129. Sum Root to Leaf Numbers | Medium | 24.7% | TopicsTreeDepth-First SearchBinary Tree |
| 226. Invert Binary Tree | Easy | 24.7% | TopicsTreeDepth-First SearchBreadth-First SearchBinary Tree |
| Binary Tree Paths | Easy | 24.7% | TopicsStringBacktrackingTreeDepth-First SearchBinary Tree |
| Single Number III | Medium | 24.7% | TopicsArrayBit Manipulation |
| 332. Reconstruct Itinerary | Hard | 24.7% | TopicsArrayStringDepth-First SearchGraph TheorySortingHeap (Priority Queue)Eulerian CircuitEulerian PathSemi-Eulerian Graph |
| 338. Counting Bits | Easy | 24.7% | TopicsDynamic ProgrammingBit Manipulation |
| Elimination Game | Medium | 24.7% | TopicsMathRecursion |
| Convert a Number to Hexadecimal | Easy | 24.7% | TopicsMathStringBit Manipulation |
| 132 Pattern | Medium | 24.7% | TopicsArrayBinary SearchStackMonotonic StackOrdered Set |
| Find Largest Value in Each Tree Row | Medium | 24.7% | TopicsTreeDepth-First SearchBreadth-First SearchBinary Tree |
| Coin Change II | Medium | 24.7% | TopicsArrayDynamic ProgrammingKnapsack ProblemComplete Knapsack |
| Find K Closest Elements | Medium | 24.7% | TopicsArrayTwo PointersBinary SearchSliding WindowSortingHeap (Priority Queue) |
| 827. Making A Large Island | Hard | 24.7% | TopicsArrayDepth-First SearchBreadth-First SearchUnion-FindMatrix |
| 905. Sort Array By Parity | Easy | 24.7% | TopicsArrayTwo PointersSorting |
| 1008. Construct Binary Search Tree from Preorder Traversal | Medium | 24.7% | TopicsArrayStackTreeBinary Search TreeMonotonic StackBinary Tree |
| 1043. Partition Array for Maximum Sum | Medium | 24.7% | TopicsArrayDynamic Programming |
| 1071. Greatest Common Divisor of Strings | Easy | 24.7% | TopicsMathStringEuclidean AlgorithmGreatest Common Divisor |
| 1108. Defanging an IP Address | Easy | 24.7% | TopicsString |
| 1248. Count Number of Nice Subarrays | Medium | 24.7% | TopicsArrayHash TableMathSliding WindowPrefix Sum |
| 1346. Check If N and Its Double Exist | Easy | 24.7% | TopicsArrayHash TableTwo PointersBinary SearchSorting |
| 1903. Largest Odd Number in String | Easy | 24.7% | TopicsMathStringGreedy |
| Find a Peak Element II | Medium | 24.7% | TopicsArrayBinary SearchMatrix |
| 1331. Rank Transform of an Array | Easy | 24.7% | TopicsArrayHash TableSorting |
| Insert Delete GetRandom O(1) - Duplicates allowed | Hard | 24.7% | TopicsArrayHash TableMathDesignRandomized |
| Reverse Bits | Easy | 24.7% | TopicsDivide and ConquerBit Manipulation |
