| 🟢 Maximum Depth of Binary Tree |
js |
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| 🟢 Same Tree |
python |
 |
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| 🟢 Invert Binary Tree |
python |
 |
 |
| 🟢 Symmetric Tree |
go |
 |
 |
| 🟡 Construct Binary Tree from Preorder and Inorder Traversal |
go |
 |
 |
| 🟡 Construct Binary Tree from Inorder and Postorder Traversal |
js |
 |
 |
| 🟡 Populating Next Right Pointers in Each Node II |
 |
 |
 |
| 🟡 Flatten Binary Tree to Linked List |
 |
 |
 |
| 🟢 Path Sum |
python |
 |
 |
| 🟡 Sum Root to Leaf Numbers |
php |
 |
 |
| 🔴 Binary Tree Maximum Path Sum |
 |
 |
 |
| 🟡 Binary Search Tree Iterator |
 |
 |
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| 🟢 Count Complete Tree Nodes |
python |
 |
 |
| 🟡 Lowest Common Ancestor of a Binary Tree |
 |
 |
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