Practice problems across 75+ categories
Practice problems frequently asked at String • 803 problems | 228 Easy | 390 Medium | 177 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 316 | Iterator for Combination | Medium | StringBacktrackingDesign |
| 317 | Jewels and Stones | Easy | Hash TableString |
| 318 | JSON Parser from Scratch | Hard | System DesignStringRecursion |
| 319 | Jump Game VII | Medium | StringDynamic ProgrammingSliding Window |
| 320 | K-Similar Strings | Hard | Hash TableStringBreadth-First Search |
| 321 | Kaprekar Number Checker | Easy | LoopsLoopMath |
| 322 | Keyboard Row | Easy | ArrayHash TableString |
| 323 | KMP String Matching | Hard | Advanced AlgorithmsStringFailure Function |
| 324 | Kth Distinct String in an Array | Easy | ArrayHash TableString |
| 325 | Largest 3-Same-Digit Number in String | Easy | String |
| 326 | Largest Merge Of Two Strings | Medium | Two PointersStringGreedy |
| 327 | Largest Number | Medium | ArrayStringGreedy |
| 328 | Largest Number After Mutating Substring | Medium | ArrayStringGreedy |
| 329 | Largest Odd Number in String | Easy | MathStringGreedy |
| 330 | Largest Palindromic Number | Medium | Hash TableStringGreedy |
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