Which traversal method visits the root node first in a binary tree?
Practice Questions
Q1
Which traversal method visits the root node first in a binary tree?
In-order
Post-order
Pre-order
Level-order
Questions & Step-by-Step Solutions
Which traversal method visits the root node first in 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: Learn about tree traversal methods. Traversal methods are ways to visit all the nodes in a tree.
Step 3: Identify the different types of traversal methods. The main types are Pre-order, In-order, and Post-order.
Step 4: Focus on Pre-order traversal. In this method, you visit the root node first.
Step 5: After visiting the root, you then visit the left subtree.
Step 6: Finally, you visit the right subtree.
Step 7: Conclude that Pre-order traversal is the method that visits the root node first.
