Which traversal method is used to get the nodes of a binary tree in non-decreasi
Practice Questions
Q1
Which traversal method is used to get the nodes of a binary tree in non-decreasing order?
Pre-order
Post-order
In-order
Level-order
Questions & Step-by-Step Solutions
Which traversal method is used 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: Learn about traversal methods. Traversal methods are ways to visit all the nodes in a binary tree.
Step 3: Identify the types of traversal methods. The main types are pre-order, in-order, and post-order.
Step 4: Focus on in-order traversal. In in-order traversal, you visit the left subtree first, then the root node, and finally the right subtree.
Step 5: Understand how in-order traversal works for binary search trees (BST). In a BST, the left child is always less than the parent node, and the right child is always greater.
Step 6: Conclude that when you perform in-order traversal on a binary search tree, you will visit the nodes in non-decreasing order.
