backtracking
2 problems, easiest first. Every one is open — nothing here is locked behind the others.
0 / 2 solved
| Solved | Problem | Topic | Difficulty |
|---|---|---|---|
| Subsets | backtracking | medium | |
| Word Search | backtracking | medium |
Stuck on the pattern rather than the problem? The backtracking lesson walks through it with an animation you can step through.