Binary Tree Traversal Techniques: Recursive and Iterative Approaches
Recusrive Traversal Patterns
Recursive implmeentations follow the core principle of processing the root node before/after children.
Preorder Trvaersal (Root-Left-Right)
class Solution {
public:
void processNode(TreeNode* current, std::vector<int>& output) {
if (!current) return;
output.push_back(current->val); ...
Posted on Mon, 25 May 2026 18:00:11 +0000 by Grizzzzzzzzzz