Problems: Trees
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| Status | Problem | Difficulty | Actions |
|---|---|---|---|
| Maximum Depth of Binary Tree | Easy | Practice | |
| Invert Binary Tree | Easy | Practice | |
| Same Tree | Easy | Practice | |
| Validate Binary Search Tree | Medium | Practice | |
| Binary Tree Level Order Traversal | Medium | Practice | |
| Lowest Common Ancestor of a BST | Medium | Practice | |
| Serialize and Deserialize Binary Tree | Hard | Practice |
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