Practice problems across 75+ categories
Practice problems frequently asked at Amazon • 3399 problems | 851 Easy | 1772 Medium | 756 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 1636 | Max Dot Product of Two Subsequences | Hard | ArrayDynamic Programming |
| 1637 | Max Increase to Keep City Skyline | Medium | ArrayGreedyMatrix |
| 1638 | Max Number of K-Sum Pairs | Medium | ArrayHash TableTwo Pointers |
| 1639 | Max Pair Sum in an Array | Easy | ArrayHash Table |
| 1640 | Max Points on a Line | Hard | ArrayHash TableMath |
| 1641 | Max Stack | Hard | Linked ListStackDesign |
| 1642 | Max Sum of a Pair With Equal Sum of Digits | Medium | ArrayHash TableSorting |
| 1643 | Max Value of Equation | Hard | ArrayQueueSliding Window |
| 1644 | Maximal Network Rank | Medium | Graph |
| 1645 | Maximal Range That Each Element Is Maximum in It | Medium | ArrayStackMonotonic Stack |
| 1646 | Maximal Rectangle | Hard | ArrayDynamic ProgrammingStack |
| 1647 | Maximal Score After Applying K Operations | Medium | ArrayGreedyHeap (Priority Queue) |
| 1648 | Maximal Square | Medium | ArrayDynamic ProgrammingMatrix |
| 1649 | Maximize Active Section with Trade II | Hard | ArrayStringBinary Search |
| 1650 | Maximize Area of Square Hole in Grid | Medium | ArraySorting |
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