Practice problems across 75+ categories
Practice problems frequently asked at String • 803 problems | 228 Easy | 390 Medium | 177 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 361 | Longest Common Prefix After at Most One Removal | Medium | Two PointersString |
| 362 | Longest Common Prefix Between Adjacent Strings After Removals | Medium | ArrayString |
| 363 | Longest Common Prefix of K Strings After Removal | Hard | ArrayStringTrie |
| 364 | Longest Common Subsequence | Medium | StringDynamic Programming |
| 365 | Longest Common Suffix Queries | Hard | ArrayStringTrie |
| 366 | Longest Duplicate Substring | Hard | StringBinary SearchSliding Window |
| 367 | Longest Happy Prefix | Hard | StringRolling HashString Matching |
| 368 | Longest Happy String | Medium | StringGreedyHeap (Priority Queue) |
| 369 | Longest Ideal Subsequence | Medium | Hash TableStringDynamic Programming |
| 370 | Longest Nice Substring | Easy | Hash TableStringDivide and Conquer |
| 371 | Longest Palindrome | Easy | Hash TableStringGreedy |
| 372 | Longest Palindrome After Substring Concatenation I | Medium | Two PointersStringDynamic Programming |
| 373 | Longest Palindrome After Substring Concatenation II | Hard | Two PointersStringDynamic Programming |
| 374 | Longest Palindrome by Concatenating Two Letter Words | Medium | ArrayHash TableString |
| 375 | Longest Palindromic Subsequence | Medium | StringDynamic Programming |
Powerful online tools to boost your productivity
Coding Ground For Developers
Code, Edit, Run and ShareIgnite your coding potential on Coding Ground - an immersive online platform for hands-on learning, collaboration, and skill development.
