Amazon
2015 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| Monotone Increasing Digits | Medium | 23.6% | TopicsMathGreedy |
| 857. Minimum Cost to Hire K Workers | Hard | 23.6% | TopicsArrayGreedySortingHeap (Priority Queue) |
| 979. Distribute Coins in Binary Tree | Medium | 23.6% | TopicsTreeDepth-First SearchBinary TreeDP on Trees |
| 997. Find the Town Judge | Easy | 23.6% | TopicsArrayHash TableGraph Theory |
| 1086. High Five | Easy | 23.6% | TopicsArrayHash TableSortingHeap (Priority Queue) |
| 1099. Two Sum Less Than K | Easy | 23.6% | TopicsArrayTwo PointersBinary SearchSorting |
| 1102. Path With Maximum Minimum Value | Medium | 23.6% | TopicsArrayBinary SearchDepth-First SearchBreadth-First SearchUnion-FindHeap (Priority Queue)MatrixDijkstra's Algorithm |
| 1052. Grumpy Bookstore Owner | Medium | 23.6% | TopicsArraySliding Window |
| 1054. Distant Barcodes | Medium | 23.6% | TopicsArrayHash TableGreedySortingHeap (Priority Queue)Counting |
| 1214. Two Sum BSTs | Medium | 23.6% | TopicsTwo PointersBinary SearchStackTreeDepth-First SearchBinary Search TreeBinary Tree |
| Game Play Analysis IV | Medium | 23.6% | TopicsDatabase |
| 1260. Shift 2D Grid | Easy | 23.6% | TopicsArrayMatrixSimulation |
| 2305. Fair Distribution of Cookies | Medium | 23.6% | TopicsArrayDynamic ProgrammingBacktrackingBit ManipulationBitmask |
| 1295. Find Numbers with Even Number of Digits | Easy | 23.6% | TopicsArrayMath |
| 1305. All Elements in Two Binary Search Trees | Medium | 23.6% | TopicsTreeDepth-First SearchBinary Search TreeSortingBinary Tree |
| Restaurant Growth | Medium | 23.6% | TopicsDatabase |
| 1332. Remove Palindromic Subsequences | Easy | 23.6% | TopicsTwo PointersString |
| 1335. Minimum Difficulty of a Job Schedule | Hard | 23.6% | TopicsArrayDynamic Programming |
| 1337. The K Weakest Rows in a Matrix | Easy | 23.6% | TopicsArrayBinary SearchSortingHeap (Priority Queue)Matrix |
| 1463. Cherry Pickup II | Hard | 23.6% | TopicsArrayDynamic ProgrammingMatrix |
| 1493. Longest Subarray of 1's After Deleting One Element | Medium | 23.6% | TopicsArrayDynamic ProgrammingSliding Window |
| 1512. Number of Good Pairs | Easy | 23.6% | TopicsArrayHash TableMathCounting |
| 1679. Max Number of K-Sum Pairs | Medium | 23.6% | TopicsArrayHash TableTwo PointersSorting |
| 1750. Minimum Length of String After Deleting Similar Ends | Medium | 23.6% | TopicsTwo PointersString |
| Find Distance in a Binary Tree | Medium | 23.6% | TopicsHash TableTreeDepth-First SearchBreadth-First SearchBinary TreeBinary LiftingLowest Common Ancestor |
