Description: Postorder traversal is a method for visiting all vertices of a tree or graph in a specific order, where children are visited before their parent. This approach is particularly useful in data structures like trees, where it is necessary to process child nodes before addressing the parent node. In postorder traversal, a sequence is followed that involves visiting the left subtree first, then the right subtree, and finally the root node. This technique allows for operations such as node deletion or evaluation of expressions in postfix notation. One of the most relevant characteristics of postorder traversal is its ability to break down complex problems into simpler tasks, thus facilitating the implementation of recursive algorithms. Additionally, it is a method that ensures all child nodes are processed before their parent node is processed, which is essential in applications where the order of operations is critical. In summary, postorder traversal is a fundamental tool in graph theory and in the manipulation of hierarchical data structures, providing a clear framework for exploring and processing nodes in a graph or tree.
