What traversal method is used to copy a binary tree?
Practice Questions
Q1
What traversal method is used to copy a binary tree?
Pre-order
In-order
Post-order
Level-order
Questions & Step-by-Step Solutions
What traversal method is used to copy 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, called the left child and the right child.
Step 2: Learn about tree traversal methods. Traversal means visiting each node in the tree in a specific order.
Step 3: Identify the three common traversal methods: Pre-order, In-order, and Post-order.
Step 4: Focus on Pre-order traversal. In Pre-order, you visit the root node first, then the left child, and finally the right child.
Step 5: Realize why Pre-order is used for copying. By visiting the root first, you can create a new node for it before moving to its children, making it easier to reconstruct the tree.
Step 6: Conclude that Pre-order traversal is the best method for copying a binary tree.
