Practice problems across 75+ categories
Practice problems frequently asked at Amazon • 3399 problems | 851 Easy | 1772 Medium | 756 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 3196 | The Earliest Moment When Everyone Become Friends | Medium | ArrayUnion FindSorting |
| 3197 | The Employee That Worked on the Longest Task | Easy | Array |
| 3198 | The First Day of the Maximum Recorded Degree in Each City | Medium | Database |
| 3199 | The k Strongest Values in an Array | Medium | ArrayTwo PointersSorting |
| 3200 | The k-th Lexicographical String of All Happy Strings of Length n | Medium | StringBacktracking |
| 3201 | The K Weakest Rows in a Matrix | Easy | ArrayBinary SearchSorting |
| 3202 | The Knight's Tour | Medium | ArrayBacktrackingMatrix |
| 3203 | The Latest Login in 2020 | Easy | Database |
| 3204 | The Latest Time to Catch a Bus | Medium | ArrayTwo PointersBinary Search |
| 3205 | The Maze | Medium | ArrayDepth-First SearchBreadth-First Search |
| 3206 | The Maze II | Medium | ArrayDepth-First SearchBreadth-First Search |
| 3207 | The Maze III | Hard | ArrayStringDepth-First Search |
| 3208 | The Most Frequently Ordered Products for Each Customer | Medium | Database |
| 3209 | The Most Recent Orders for Each Product | Medium | Database |
| 3210 | The Most Recent Three Orders | Medium | Database |
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