Practice problems across 75+ categories
Practice problems frequently asked at Meta • 2900 problems | 652 Easy | 1528 Medium | 703 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 1036 | First Unique Number | Medium | ArrayHash TableDesign |
| 1037 | Fix Names in a Table | Easy | Database |
| 1038 | Fix Product Name Format | Easy | Database |
| 1039 | Fizz Buzz | Easy | MathStringSimulation |
| 1040 | Fizz Buzz Multithreaded | Medium | Concurrency |
| 1041 | Flatten a Multilevel Doubly Linked List | Medium | Linked ListDepth-First SearchDoubly-Linked List |
| 1042 | Flatten Deeply Nested Array | Medium | JavaScript |
| 1043 | Flatten Nested List Iterator | Medium | StackTreeDepth-First Search |
| 1044 | Flight Occupancy and Waitlist Analysis | Medium | Database |
| 1045 | Flip Binary Tree To Match Preorder Traversal | Medium | TreeDepth-First SearchBinary Tree |
| 1046 | Flip Columns For Maximum Number of Equal Rows | Medium | ArrayHash TableMatrix |
| 1047 | Flip Game | Easy | String |
| 1048 | Flip String to Monotone Increasing | Medium | StringDynamic Programming |
| 1049 | Flood Fill | Easy | ArrayDepth-First SearchBreadth-First Search |
| 1050 | Form Array by Concatenating Subarrays of Another Array | Medium | ArrayTwo PointersGreedy |
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