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12 problems total
| Title | Difficulty | Videos | Companies |
|---|---|---|---|
| Longest Palindromic Substring | medium | ||
| Letter Combinations of a Phone Number | medium | - | |
| Valid Sudoku | medium | ||
| Design LRU Cache | medium | - | |
| Number of Islands | medium | ||
| Palindromic Substrings | medium | ||
| Subdomain Visit Count | medium | - | |
| Count Number of Nice Subarrays | medium | - | |
| Group the People Given the Group Size They Belong To | medium | - | |
| Maximum Number of Occurrences of a Substring | medium | - | |
| Break a Palindrome | medium | - | |
| Number of Trusted Contacts of a Customer | medium | - |