Amazon
2015 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 3163. String Compression III | Medium | 10.3% | TopicsString |
| 2044. Count Number of Maximum Bitwise-OR Subsets | Medium | 10.3% | TopicsArrayBacktrackingBit ManipulationEnumeration |
| 1403. Minimum Subsequence in Non-Increasing Order | Easy | 10.3% | TopicsArrayGreedySorting |
| 2275. Largest Combination With Bitwise AND Greater Than Zero | Medium | 10.3% | TopicsArrayHash TableBit ManipulationCounting |
| 942. DI String Match | Easy | 10.3% | TopicsArrayTwo PointersStringGreedy |
| 3349. Adjacent Increasing Subarrays Detection I | Easy | 10.3% | TopicsArray |
| 2516. Take K of Each Character From Left and Right | Medium | 10.3% | TopicsHash TableStringSliding Window |
| The Most Frequently Ordered Products for Each Customer | Medium | 10.3% | TopicsDatabase |
| 2593. Find Score of an Array After Marking All Elements | Medium | 10.3% | TopicsArrayHash TableSortingHeap (Priority Queue)Simulation |
| 2940. Find Building Where Alice and Bob Can Meet | Hard | 10.3% | TopicsArrayBinary SearchStackBinary Indexed TreeSegment TreeHeap (Priority Queue)Monotonic Stack |
| 1014. Best Sightseeing Pair | Medium | 10.3% | TopicsArrayDynamic Programming |
| 2381. Shifting Letters II | Medium | 10.3% | TopicsArrayStringPrefix Sum |
| 2587. Rearrange Array to Maximize Prefix Score | Medium | 10.3% | TopicsArrayGreedySortingPrefix Sum |
| Employee Importance | Medium | 10.3% | TopicsArrayHash TableTreeDepth-First SearchBreadth-First Search |
| Find Users With Valid E-Mails | Easy | 10.3% | TopicsDatabase |
| 2683. Neighboring Bitwise XOR | Medium | 10.3% | TopicsArrayBit Manipulation |
| 1245. Tree Diameter | Medium | 10.3% | TopicsTreeDepth-First SearchBreadth-First SearchGraph TheoryTopological SortDP on Trees |
| 768. Max Chunks To Make Sorted II | Hard | 10.3% | TopicsArrayStackGreedySortingMonotonic Stack |
| 795. Number of Subarrays with Bounded Maximum | Medium | 10.3% | TopicsArrayTwo Pointers |
| Design Excel Sum Formula | Hard | 10.3% | TopicsArrayHash TableStringGraph TheoryDesignTopological SortMatrix |
| 2698. Find the Punishment Number of an Integer | Medium | 10.3% | TopicsMathBacktracking |
| Count Univalue Subtrees | Medium | 10.3% | TopicsTreeDepth-First SearchBinary TreeDP on Trees |
| 2579. Count Total Number of Colored Cells | Medium | 10.3% | TopicsMath |
| 2062. Count Vowel Substrings of a String | Easy | 10.3% | TopicsHash TableString |
| Teemo Attacking | Easy | 10.3% | TopicsArraySimulation |
