Which traversal method is best for creating a mirror image of a binary tree?
Practice Questions
Q1
Which traversal method is best for creating a mirror image of a binary tree?
In-order
Post-order
Pre-order
Level-order
Questions & Step-by-Step Solutions
Which traversal method is best for creating a mirror image of a binary tree?
Step 1: Understand what a binary tree is. A binary tree is a structure where each node has at most two children, referred to as the left child and the right child.
Step 2: Know what a mirror image of a binary tree means. A mirror image means that the left and right children of all nodes are swapped.
Step 3: Learn about tree traversal methods. Common methods include pre-order, in-order, and post-order traversal.
Step 4: Focus on post-order traversal. In post-order traversal, you visit the left child, then the right child, and finally the parent node.
Step 5: Realize why post-order is best for mirroring. By visiting the children first (left and right), you can swap them before moving up to the parent node.
Step 6: Conclude that post-order traversal is the best method for creating a mirror image of a binary tree.
