Practice problems across 75+ categories
Practice problems frequently asked at Amazon • 3399 problems | 851 Easy | 1772 Medium | 756 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 1456 | Last Visited Integers | Easy | ArraySimulation |
| 1457 | Latest Time by Replacing Hidden Digits | Easy | StringGreedy |
| 1458 | Latest Time You Can Obtain After Replacing Characters | Easy | StringEnumeration |
| 1459 | Leaf-Similar Trees | Easy | TreeDepth-First SearchBinary Tree |
| 1460 | League Statistics | Medium | Database |
| 1461 | Least Number of Unique Integers after K Removals | Medium | ArrayHash TableGreedy |
| 1462 | Least Operators to Express Number | Hard | MathDynamic ProgrammingMemoization |
| 1463 | Leetcodify Friends Recommendations | Hard | Database |
| 1464 | Leetcodify Similar Friends | Hard | Database |
| 1465 | Leetflex Banned Accounts | Medium | Database |
| 1466 | Left and Right Sum Differences | Easy | ArrayPrefix Sum |
| 1467 | Lemonade Change | Easy | ArrayGreedy |
| 1468 | Length of Last Word | Easy | String |
| 1469 | Length of Longest Fibonacci Subsequence | Medium | ArrayHash TableDynamic Programming |
| 1470 | Length of Longest Subarray With at Most K Frequency | Medium | ArrayHash TableSliding Window |
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