Which traversal method would you use to get the nodes of a binary tree in non-de
Practice Questions
Q1
Which traversal method would you use to get the nodes of a binary tree in non-decreasing order?
Pre-order
In-order
Post-order
Level-order
Questions & Step-by-Step Solutions
Which traversal method would you use to get the nodes of a binary tree in non-decreasing order?
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: Know what a binary search tree (BST) is. In a BST, for each node, all values in the left subtree are less than the node's value, and all values in the right subtree are greater.
Step 3: Learn about traversal methods. Traversal methods are ways to visit all the nodes in a tree. Common methods include in-order, pre-order, and post-order.
Step 4: Focus on in-order traversal. In in-order traversal, you visit the left child, then the node itself, and finally the right child.
Step 5: Apply in-order traversal to a binary search tree. When you perform in-order traversal on a BST, you will visit the nodes in ascending order, which is the same as non-decreasing order.
Step 6: Conclude that in-order traversal is the method to use for getting the nodes of a binary search tree in non-decreasing order.
