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18 problems total
| Title | Difficulty | Videos | Companies |
|---|---|---|---|
| Generate Parentheses | medium | - | |
| Permutations of Array 1 | medium | - | |
| N-Queens | hard | - | |
| Subsets 1 | medium | ||
| Word Search 1 - Find if word exists | medium | ||
| Path Sum 2 - find all root to leaf paths | medium | - | |
| Word Break 1 - Check if word is breakable | medium | ||
| Word Search 2 - Return All Words | hard | ||
| Lowest Common Ancestor of a Binary Tree | medium | ||
| Expression Add Operators | hard | - | |
| Walls and Gates | medium | - | |
| Generalized Abbreviation | medium | - | |
| Longest Increasing Path in a Matrix | hard | - | |
| Android Unlock Patterns | medium | - | |
| Optimal Account Balancing | hard | - | |
| Next Closest Time | medium | - | |
| Partition to K Equal Sum Subsets | medium | - | |
| Maximum Profit in Job Scheduling | hard | - |