12 problems
| Name | Difficulty |
|---|---|
| Detect Cycle In Linked List | Easy |
| Generate Permutations | Medium |
| Word Ladder | Medium |
| Word Search - Find word | Medium |
| Combination Sum | Medium |
| Convert Adjacency Matrix to Adjacency List | Medium |
| Count islands | Medium |
| Generate Subsets | Medium |
| Flood Fill | Medium |
| N-Queens - Placement Count | Hard |
| Word Search - Find all words | Hard |
| Match Three Plus in Grid | Hard |