DFS
2021
- Leetcode 662 Maximum Width of Binary Tree Aug 21
- Leetcode 236 Lowest Common Ancestor of a Binary Tree Aug 20
- Leetcode 98 Validate Binary Search Tree Aug 17
- Leetcode 105 Construct Binary Tree from Preorder and Inorder Traversal Aug 16
- Leetcode 654 Maximum Binary Tree Aug 15
- Leetcode 117 Populating Next Right Pointers in Each Node II Aug 15
- Leetcode 863 All Nodes Distance K in Binary Tree Aug 14
- Leetcode 116 Populating Next Right Pointers in Each Node Aug 13
- Leetcode 437 Path Sum III Aug 12
- Leetcode 113 Path Sum II Aug 11
- Leetcode 210 Course Schedule II Aug 4
- Leetcode 207 Course Schedule Aug 3
- Leetcode 230 Kth Smallest Element in a BST Jul 25
- Leetcode 671 Second Minimum Node In a Binary Tree Jun 25
- Leetcode 257 Binary Tree Paths Jun 15
- Leetcode 110 Balanced Binary Tree Jun 1
- Leetcode 261 Graph Valid Tree May 15
- Leetcode 200 Number of Islands May 14
- Leetcode 417 Pacific Atlantic Water Flow May 13
- Leetcode 133 Clone Graph May 12
- Leetcode 226 Invert Binary Tree Mar 25
- Leetcode 572 Subtree of Another Tree Mar 24
- Leetcode 235 Lowest Common Ancestor of a Binary Search Tree Mar 24
- Leetcode 104 Maximum Depth of Binary Tree Mar 24
- Leetcode 617 Merge Two Binary Trees Mar 23
- Leetcode 543 Diameter of Binary Tree Mar 22
- Leetcode 112 Path Sum Mar 21
- Leetcode 100 Same Tree Mar 20
- Leetcode 111 Minimum Depth of Binary Tree Mar 19