Bloomberg
1239 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 90. Subsets II | Medium | 49.5% | TopicsArrayBacktrackingBit Manipulation |
| 103. Binary Tree Zigzag Level Order Traversal | Medium | 49.5% | TopicsTreeBreadth-First SearchBinary Tree |
| 202. Happy Number | Easy | 49.5% | TopicsHash TableMathTwo PointersFloyd's Cycle Finding Algorithm |
| 230. Kth Smallest Element in a BST | Medium | 49.5% | TopicsTreeDepth-First SearchBinary Search TreeBinary Tree |
| 287. Find the Duplicate Number | Medium | 49.5% | TopicsArrayTwo PointersBinary SearchBit ManipulationPigeonhole PrincipleFloyd's Cycle Finding Algorithm |
| 300. Longest Increasing Subsequence | Medium | 49.5% | TopicsArrayBinary SearchDynamic ProgrammingLongest Increasing Subsequence |
| 25. Reverse Nodes in k-Group | Hard | 48.7% | TopicsLinked ListRecursion |
| 104. Maximum Depth of Binary Tree | Easy | 48.7% | TopicsTreeDepth-First SearchBreadth-First SearchBinary Tree |
| 124. Binary Tree Maximum Path Sum | Hard | 48.7% | TopicsDynamic ProgrammingTreeDepth-First SearchBinary TreeDP on Trees |
| Two Sum II - Input Array Is Sorted | Medium | 48.7% | TopicsArrayTwo PointersBinary Search |
| Rising Temperature | Easy | 48.7% | TopicsDatabase |
| Lexicographical Numbers | Medium | 48.7% | TopicsDepth-First SearchTrie |
| 416. Partition Equal Subset Sum | Medium | 48.7% | TopicsArrayDynamic ProgrammingKnapsack Problem0-1 Knapsack |
| 1823. Find the Winner of the Circular Game | Medium | 48.7% | TopicsArrayMathRecursionQueueSimulation |
| 904. Fruit Into Baskets | Medium | 48.7% | TopicsArrayHash TableSliding Window |
| Divide Two Integers | Medium | 47.8% | TopicsMathBit Manipulation |
| Populating Next Right Pointers in Each Node II | Medium | 47.8% | TopicsLinked ListTreeDepth-First SearchBreadth-First SearchBinary Tree |
| Evaluate Reverse Polish Notation | Medium | 47.8% | TopicsArrayMathStack |
| Managers with at Least 5 Direct Reports | Medium | 47.8% | TopicsDatabase |
| 901. Online Stock Span | Medium | 47.8% | TopicsStackDesignMonotonic StackData Stream |
| 1472. Design Browser History | Medium | 47.8% | TopicsArrayLinked ListStackDesignDoubly-Linked ListData Stream |
| Second Highest Salary | Medium | 47.8% | TopicsDatabase |
| Longest Valid Parentheses | Hard | 46.9% | TopicsStringDynamic ProgrammingStackBracket Sequences |
| 37. Sudoku Solver | Hard | 46.9% | TopicsArrayHash TableBacktrackingMatrixAlgorithm XDancing Links |
| Wildcard Matching | Hard | 46.9% | TopicsStringDynamic ProgrammingGreedyRecursion |
