Mastercard
14 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 1. Two Sum | Easy | 100% | TopicsArrayHash Table |
| Strange Printer | Hard | 100% | TopicsStringDynamic Programming |
| 121. Best Time to Buy and Sell Stock | Easy | 93.9% | TopicsArrayDynamic Programming |
| Coin Change II | Medium | 93.9% | TopicsArrayDynamic ProgrammingKnapsack ProblemComplete Knapsack |
| 51. N-Queens | Hard | 93.9% | TopicsArrayBacktrackingAlgorithm X |
| 20. Valid Parentheses | Easy | 86% | TopicsStringStackBracket Sequences |
| 322. Coin Change | Medium | 86% | TopicsArrayDynamic ProgrammingBreadth-First SearchKnapsack ProblemComplete Knapsack |
| 412. Fizz Buzz | Easy | 86% | TopicsMathStringSimulation |
| 749. Contain Virus | Hard | 86% | TopicsArrayDepth-First SearchBreadth-First SearchMatrixSimulation |
| 134. Gas Station | Medium | 74.9% | TopicsArrayGreedy |
| 79. Word Search | Medium | 74.9% | TopicsArrayStringBacktrackingDepth-First SearchMatrix |
| 48. Rotate Image | Medium | 74.9% | TopicsArrayMathMatrix |
| 53. Maximum Subarray | Medium | 74.9% | TopicsArrayDivide and ConquerDynamic Programming |
| 55. Jump Game | Medium | 74.9% | TopicsArrayDynamic ProgrammingGreedy |
