Trees
Master these 15 problems to understand the Trees pattern.
226. Invert Binary TreeEasy
104. Maximum Depth of Binary TreeEasy
543. Diameter of Binary TreeEasy
110. Balanced Binary TreeEasy
100. Same TreeEasy
572. Subtree of Another TreeEasy
236. Lowest Common Ancestor of a Binary TreeMedium
102. Binary Tree Level Order TraversalMedium
199. Binary Tree Right Side ViewMedium
1448. Count Good Nodes in Binary TreeMedium
98. Validate Binary Search TreeMedium
230. Kth Smallest Element in a BSTMedium
105. Construct Binary Tree from Preorder and Inorder TraversalMedium
124. Binary Tree Maximum Path SumHard
297. Serialize and Deserialize Binary TreeHard