Practice problems across 75+ categories
Practice problems frequently asked at Meta • 2900 problems | 652 Easy | 1528 Medium | 703 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 2386 | Replace Elements with Greatest Element on Right Side | Easy | Array |
| 2387 | Replace Employee ID With The Unique Identifier | Easy | Database |
| 2388 | Replace Non-Coprime Numbers in Array | Hard | ArrayMathStack |
| 2389 | Replace Question Marks in String to Minimize Its Value | Medium | Hash TableStringGreedy |
| 2390 | Replace the Substring for Balanced String | Medium | StringSliding Window |
| 2391 | Report Contiguous Dates | Hard | Database |
| 2392 | Report Spam Message | Medium | ArrayHash TableString |
| 2393 | Reported Posts | Easy | Database |
| 2394 | Reported Posts II | Medium | Database |
| 2395 | Reshape Data: Concatenate | Easy | Database |
| 2396 | Reshape Data: Pivot | Easy | Database |
| 2397 | Restaurant Growth | Medium | Database |
| 2398 | Restore IP Addresses | Medium | StringBacktracking |
| 2399 | Restore the Array From Adjacent Pairs | Medium | ArrayHash TableDepth-First Search |
| 2400 | Resulting String After Adjacent Removals | Medium | StringStackSimulation |
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