Amazon
2015 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 1895. Largest Magic Square | Medium | 10.3% | TopicsArrayMatrixPrefix Sum |
| 2858. Minimum Edge Reversals So Every Node Is Reachable | Hard | 10.3% | TopicsDynamic ProgrammingDepth-First SearchBreadth-First SearchGraph Theory |
| Minimum Absolute Difference in BST | Easy | 10.3% | TopicsTreeDepth-First SearchBreadth-First SearchBinary Search TreeBinary Tree |
| Binary Number with Alternating Bits | Easy | 10.3% | TopicsBit Manipulation |
| 868. Binary Gap | Easy | 10.3% | TopicsBit Manipulation |
| 1784. Check if Binary String Has at Most One Segment of Ones | Easy | 10.3% | TopicsString |
| 1980. Find Unique Binary String | Medium | 10.3% | TopicsArrayHash TableStringBacktracking |
| 1594. Maximum Non Negative Product in a Matrix | Medium | 10.3% | TopicsArrayDynamic ProgrammingMatrix |
| Daily Leads and Partners | Easy | 10.3% | TopicsDatabase |
| 3418. Maximum Amount of Money Robot Can Earn | Medium | 10.3% | TopicsArrayDynamic ProgrammingMatrix |
| Web Crawler | Medium | 10.3% | TopicsStringDepth-First SearchBreadth-First SearchInteractive |
| 3653. XOR After Range Multiplication Queries I | Medium | 10.3% | TopicsArrayDivide and ConquerSimulationPrefix Sum |
| 2384. Largest Palindromic Number | Medium | 10.3% | TopicsHash TableStringGreedyCounting |
| 501. Find Mode in Binary Search Tree | Easy | 10.3% | TopicsTreeDepth-First SearchBinary Search TreeBinary Tree |
| 2024. Maximize the Confusion of an Exam | Medium | 10.3% | TopicsStringBinary SearchSliding WindowPrefix Sum |
| 3488. Closest Equal Element Queries | Medium | 10.3% | TopicsArrayHash TableBinary Search |
| 3761. Minimum Absolute Distance Between Mirror Pairs | Medium | 10.3% | TopicsArrayHash TableMath |
| 2078. Two Furthest Houses With Different Colors | Easy | 10.3% | TopicsArrayGreedy |
| 2615. Sum of Distances | Medium | 10.3% | TopicsArrayHash TablePrefix Sum |
| 3225. Maximum Score From Grid Operations | Hard | 10.3% | TopicsArrayDynamic ProgrammingMatrixPrefix Sum |
| 861. Score After Flipping Matrix | Medium | 10.3% | TopicsArrayGreedyBit ManipulationMatrix |
| 2770. Maximum Number of Jumps to Reach the Last Index | Medium | 10.3% | TopicsArrayDynamic Programming |
| Reshape the Matrix | Easy | 10.3% | TopicsArrayMatrixSimulation |
| 969. Pancake Sorting | Medium | 10.3% | TopicsArrayTwo PointersGreedySorting |
| 3753. Total Waviness of Numbers in Range II | Hard | 10.3% | TopicsMathDynamic Programming |
