A conversation about solving the Lowest Common Ancestor problem that reveals one of the most elegant patterns in tree recursion—using return values to communicate information upward through the call stack.
A conversation about solving the Widest Binary Tree Level problem that reveals how mathematical position formulas and DFS traversal create an elegant solution—and why we need to track both min and max positions at each level.
The Maximum Depth of Binary Tree problem is a classic tree traversal challenge that introduces fundamental concepts of tree algorithms. This problem is perfect for understanding the relationship between recursion and tree structures.