Bloomberg
1239 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 907. Sum of Subarray Minimums | Medium | 37.3% | TopicsArrayDynamic ProgrammingStackMonotonic Stack |
| 1021. Remove Outermost Parentheses | Easy | 37.3% | TopicsStringStackBracket Sequences |
| Number of Digit One | Hard | 37.3% | TopicsMathDynamic ProgrammingRecursion |
| 869. Reordered Power of 2 | Medium | 37.3% | TopicsHash TableMathSortingCountingEnumeration |
| Partition List | Medium | 35.7% | TopicsLinked ListTwo Pointers |
| 113. Path Sum II | Medium | 35.7% | TopicsBacktrackingTreeDepth-First SearchBinary Tree |
| 115. Distinct Subsequences | Hard | 35.7% | TopicsStringDynamic Programming |
| Excel Sheet Column Title | Easy | 35.7% | TopicsMathString |
| Perfect Squares | Medium | 35.7% | TopicsMathDynamic ProgrammingBreadth-First SearchKnapsack ProblemComplete Knapsack |
| Range Sum Query - Immutable | Easy | 35.7% | TopicsArrayDesignPrefix Sum |
| Design Hit Counter | Medium | 35.7% | TopicsArrayBinary SearchDesignQueueData Stream |
| 392. Is Subsequence | Easy | 35.7% | TopicsTwo PointersStringDynamic Programming |
| Employee Bonus | Easy | 35.7% | TopicsDatabase |
| 678. Valid Parenthesis String | Medium | 35.7% | TopicsStringDynamic ProgrammingStackGreedyBracket Sequences |
| Immediate Food Delivery II | Medium | 35.7% | TopicsDatabase |
| 1207. Unique Number of Occurrences | Easy | 35.7% | TopicsArrayHash Table |
| Dot Product of Two Sparse Vectors | Medium | 35.7% | TopicsArrayHash TableTwo PointersDesignLinear Algebra |
| Customer Who Visited but Did Not Make Any Transactions | Easy | 35.7% | TopicsDatabase |
| Find if Path Exists in Graph | Easy | 35.7% | TopicsDepth-First SearchBreadth-First SearchUnion-FindGraph Theory |
| 2235. Add Two Integers | Easy | 35.7% | TopicsMath |
| Product Price at a Given Date | Medium | 35.7% | TopicsDatabase |
| 2461. Maximum Sum of Distinct Subarrays With Length K | Medium | 35.7% | TopicsArrayHash TableSliding Window |
| 77. Combinations | Medium | 34% | TopicsBacktracking |
| Single Number II | Medium | 34% | TopicsArrayBit Manipulation |
| Consecutive Numbers | Medium | 34% | TopicsDatabase |
