Which traversal method is best for copying a binary tree?
Practice Questions
Q1
Which traversal method is best for copying a binary tree?
Pre-order
In-order
Post-order
Level-order
Questions & Step-by-Step Solutions
Which traversal method is best for copying 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, referred to as the left child and the right child.
Step 2: Learn about tree traversal methods. Tree traversal is the process of visiting all the nodes in a tree in a specific order.
Step 3: Identify the common traversal methods: Pre-order, In-order, and Post-order.
Step 4: Understand Pre-order traversal. In Pre-order traversal, you visit the root node first, then the left child, and finally the right child.
Step 5: Recognize why Pre-order is best for copying. When copying a binary tree, you want to create a new node for the root first, then recursively copy the left and right subtrees.
Step 6: Conclude that Pre-order traversal is the best method for copying a binary tree because it ensures that the root is processed before its children.
