Tree Mastery

20 tree problems covering traversal, BST, and advanced tree algorithms.

20 道題目

#	題目	難度	Rating
1	104. Maximum Depth of Binary Tree	Easy	1116
2	226. Invert Binary Tree	Easy	1160
3	100. Same Tree	Easy	1176
4	572. Subtree of Another Tree	Easy	1377
5	543. Diameter of Binary Tree	Easy	1287
6	110. Balanced Binary Tree	Easy	1194
7	112. Path Sum	Easy	1181
8	108. Convert Sorted Array to Binary Search Tree	Easy	1281
9	102. Binary Tree Level Order Traversal	Medium	1308
10	199. Binary Tree Right Side View	Medium	1454
11	236. Lowest Common Ancestor of a Binary Tree	Medium	1660
12	105. Construct Binary Tree from Preorder and Inorder Traversal	Medium	1643
13	98. Validate Binary Search Tree	Medium	1490
14	230. Kth Smallest Element in a BST	Medium	1401
15	235. Lowest Common Ancestor of a Binary Search Tree	Medium	1333
16	450. Delete Node in a BST	Medium	1590
17	173. Binary Search Tree Iterator	Medium	1569
18	1448. Count Good Nodes in Binary Tree	Medium	1438
19	124. Binary Tree Maximum Path Sum	Hard	1807
20	297. Serialize and Deserialize Binary Tree	Hard	1884