Amazon
2015 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 3408. Design Task Manager | Medium | 18% | TopicsHash TableDesignHeap (Priority Queue)Ordered Set |
| Ones and Zeroes | Medium | 18% | TopicsArrayStringDynamic ProgrammingKnapsack Problem0-1 Knapsack |
| 3379. Transformed Array | Easy | 18% | TopicsArraySimulation |
| 3713. Longest Balanced Substring I | Medium | 18% | TopicsHash TableStringCountingEnumeration |
| 799. Champagne Tower | Medium | 18% | TopicsDynamic Programming |
| 990. Satisfiability of Equality Equations | Medium | 18% | TopicsArrayStringUnion-FindGraph Theory |
| 2448. Minimum Cost to Make Array Equal | Hard | 18% | TopicsArrayBinary SearchGreedySortingPrefix Sum |
| 1665. Minimum Initial Energy to Finish Tasks | Hard | 18% | TopicsArrayGreedySorting |
| 1674. Minimum Moves to Make Array Complementary | Medium | 18% | TopicsArrayHash TablePrefix Sum |
| 3633. Earliest Finish Time for Land and Water Rides I | Easy | 18% | TopicsArrayTwo PointersBinary SearchGreedySorting |
| 3751. Total Waviness of Numbers in Range I | Medium | 18% | TopicsMathDynamic ProgrammingEnumeration |
| 3699. Number of ZigZag Arrays I | Hard | 18% | TopicsDynamic ProgrammingPrefix Sum |
| 1184. Distance Between Bus Stops | Easy | 18% | TopicsArray |
| 3499. Maximize Active Section with Trade I | Medium | 18% | TopicsStringEnumeration |
| 3090. Maximum Length Substring With Two Occurrences | Easy | 18% | TopicsHash TableStringSliding Window |
| Fraction to Recurring Decimal | Medium | 15.8% | TopicsHash TableMathString |
| Bitwise AND of Numbers Range | Medium | 15.8% | TopicsBit Manipulation |
| Shortest Word Distance | Easy | 15.8% | TopicsArrayString |
| Integer Break | Medium | 15.8% | TopicsMathDynamic Programming |
| Elimination Game | Medium | 15.8% | TopicsMathRecursion |
| 404. Sum of Left Leaves | Easy | 15.8% | TopicsTreeDepth-First SearchBreadth-First SearchBinary Tree |
| Find Right Interval | Medium | 15.8% | TopicsArrayBinary SearchSorting |
| Add Two Numbers II | Medium | 15.8% | TopicsLinked ListMathStack |
| 464. Can I Win | Medium | 15.8% | TopicsMathDynamic ProgrammingBit ManipulationMemoizationGame TheoryBitmask |
| Find Largest Value in Each Tree Row | Medium | 15.8% | TopicsTreeDepth-First SearchBreadth-First SearchBinary Tree |
