Amazon
2015 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 1497. Check If Array Pairs Are Divisible by k | Medium | 20.1% | TopicsArrayHash TableCounting |
| Clone N-ary Tree | Medium | 20.1% | TopicsHash TableTreeDepth-First SearchBreadth-First Search |
| Friendly Movies Streamed Last Month | Easy | 20.1% | TopicsDatabase |
| 1558. Minimum Numbers of Function Calls to Make Target Array | Medium | 20.1% | TopicsArrayGreedyBit Manipulation |
| Warehouse Manager | Easy | 20.1% | TopicsDatabase |
| 1621. Number of Sets of K Non-Overlapping Line Segments | Medium | 20.1% | TopicsMathDynamic ProgrammingCombinatoricsPrefix Sum |
| Build Binary Expression Tree From Infix Expression | Hard | 20.1% | TopicsStringStackTreeBinary Tree |
| Find the Missing IDs | Medium | 20.1% | TopicsDatabase |
| All Valid Triplets That Can Represent a Country | Easy | 20.1% | TopicsDatabase |
| 1670. Design Front Middle Back Queue | Medium | 20.1% | TopicsArrayLinked ListDesignQueueDoubly-Linked ListData Stream |
| Add Two Polynomials Represented as Linked Lists | Medium | 20.1% | TopicsLinked ListMathTwo Pointers |
| 1734. Decode XORed Permutation | Medium | 20.1% | TopicsArrayBit Manipulation |
| 1735. Count Ways to Make Array With Product | Hard | 20.1% | TopicsArrayMathDynamic ProgrammingCombinatoricsNumber TheoryPrime FactorizationFermat's Little Theorem |
| Number of Calls Between Two Persons | Medium | 20.1% | TopicsDatabase |
| 1761. Minimum Degree of a Connected Trio in a Graph | Hard | 20.1% | TopicsGraph TheoryEnumeration |
| 1779. Find Nearest Point That Has the Same X or Y Coordinate | Easy | 20.1% | TopicsArray |
| 1782. Count Pairs Of Nodes | Hard | 20.1% | TopicsArrayHash TableTwo PointersBinary SearchGraph TheorySortingCounting |
| Sort Features by Popularity | Medium | 20.1% | TopicsArrayHash TableStringSorting |
| Product's Price for Each Store | Easy | 20.1% | TopicsDatabase |
| Grand Slam Titles | Medium | 20.1% | TopicsDatabase |
| Maximize the Beauty of the Garden | Hard | 20.1% | TopicsArrayHash TableGreedyPrefix Sum |
| Rearrange Products Table | Easy | 20.1% | TopicsDatabase |
| Ad-Free Sessions | Easy | 20.1% | TopicsDatabase |
| Find Interview Candidates | Medium | 20.1% | TopicsDatabase |
| 1852. Distinct Numbers in Each Subarray | Medium | 20.1% | TopicsArrayHash TableSliding Window |
