Amazon
2015 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| Product Sales Analysis V | Easy | 20.1% | TopicsDatabase |
| 2380. Time Needed to Rearrange a Binary String | Medium | 20.1% | TopicsStringDynamic ProgrammingSimulation |
| Valid Palindrome IV | Medium | 20.1% | TopicsTwo PointersString |
| Minimum Adjacent Swaps to Make a Valid Array | Medium | 20.1% | TopicsArrayGreedy |
| 2413. Smallest Even Multiple | Easy | 20.1% | TopicsMathNumber Theory |
| 2412. Minimum Money Required Before Transactions | Hard | 20.1% | TopicsArrayGreedySorting |
| Employees With Deductions | Medium | 20.1% | TopicsDatabase |
| 2443. Sum of Number and Its Reverse | Medium | 20.1% | TopicsMathEnumeration |
| Merge Operations to Turn Array Into a Palindrome | Medium | 20.1% | TopicsArrayTwo PointersGreedy |
| 2485. Find the Pivot Integer | Easy | 20.1% | TopicsMathPrefix Sum |
| 2501. Longest Square Streak in an Array | Medium | 20.1% | TopicsArrayHash TableBinary SearchDynamic ProgrammingSorting |
| 2527. Find Xor-Beauty of Array | Medium | 20.1% | TopicsArrayMathBit Manipulation |
| Count the Number of K-Big Indices | Hard | 20.1% | TopicsArrayBinary SearchDivide and ConquerBinary Indexed TreeSegment TreeMerge SortOrdered Set |
| Counter | Easy | 20.1% | Topics— |
| Count the Number of K-Free Subsets | Medium | 20.1% | TopicsArrayMathDynamic ProgrammingSortingCombinatorics |
| To Be Or Not To Be | Easy | 20.1% | Topics— |
| 2766. Relocate Marbles | Medium | 20.1% | TopicsArrayHash TableSortingSimulation |
| 2816. Double a Number Represented as a Linked List | Medium | 20.1% | TopicsLinked ListMathStack |
| 2841. Maximum Sum of Almost Unique Subarray | Medium | 20.1% | TopicsArrayHash TableSliding Window |
| Number of Unique Categories | Medium | 20.1% | TopicsUnion-FindInteractiveCounting |
| 2855. Minimum Right Shifts to Sort the Array | Easy | 20.1% | TopicsArray |
| Maximal Range That Each Element Is Maximum in It | Medium | 20.1% | TopicsArrayStackMonotonic Stack |
| Maximum Linear Stock Score | Medium | 20.1% | TopicsArrayHash Table |
| 2928. Distribute Candies Among Children I | Easy | 20.1% | TopicsMathCombinatoricsEnumeration |
| 2937. Make Three Strings Equal | Easy | 20.1% | TopicsString |
