Which traversal method would you use to delete a binary tree?
Practice Questions
Q1
Which traversal method would you use to delete a binary tree?
Pre-order
In-order
Post-order
Level-order
Questions & Step-by-Step Solutions
Which traversal method would you use to delete a binary tree?
Step 1: Understand what a binary tree is. A binary tree is a data structure where each node has at most two children.
Step 2: Learn about tree traversal methods. Traversal methods are ways to visit all the nodes in a tree.
Step 3: Identify the three common traversal methods: Pre-order, In-order, and Post-order.
Step 4: Focus on Post-order traversal. In Post-order, you visit the left child, then the right child, and finally the parent node.
Step 5: Recognize why Post-order is best for deletion. By visiting child nodes first, you ensure that all children are deleted before their parent, preventing memory leaks.
Step 6: Conclude that to delete a binary tree, you should use Post-order traversal.
