Practice problems across 75+ categories
Practice problems frequently asked at Amazon • 3399 problems | 851 Easy | 1772 Medium | 756 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 661 | Customer Who Visited but Did Not Make Any Transactions | Easy | Database |
| 662 | Customers Who Bought All Products | Medium | Database |
| 663 | Customers Who Bought Products A and B but Not C | Medium | Database |
| 664 | Customers Who Never Order | Easy | Database |
| 665 | Customers with Maximum Number of Transactions on Consecutive Days | Hard | Database |
| 666 | Customers With Strictly Increasing Purchases | Hard | Database |
| 667 | Cut Off Trees for Golf Event | Hard | ArrayBreadth-First SearchHeap (Priority Queue) |
| 668 | Cutting Ribbons | Medium | ArrayBinary Search |
| 669 | Cycle Length Queries in a Tree | Hard | ArrayTreeBinary Tree |
| 670 | Cyclically Rotating a Grid | Medium | ArrayMatrixSimulation |
| 671 | Daily Leads and Partners | Easy | Database |
| 672 | Daily Temperatures | Medium | ArrayStackMonotonic Stack |
| 673 | Date Range Generator | Medium | JavaScript |
| 674 | Day of the Week | Easy | Math |
| 675 | Day of the Year | Easy | MathString |
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