Which traversal method is not suitable for binary search trees when you want to
Practice Questions
Q1
Which traversal method is not suitable for binary search trees when you want to retrieve nodes in sorted order?
In-order
Pre-order
Post-order
Level-order
Questions & Step-by-Step Solutions
Which traversal method is not suitable for binary search trees when you want to retrieve nodes in sorted order?
Step 1: Understand what a binary search tree (BST) is. A BST is a type of tree where each node has a value, and the left child has a smaller value while the right child has a larger value.
Step 2: Learn about tree traversal methods. Common methods include pre-order, in-order, and post-order.
Step 3: Know what in-order traversal does. In-order traversal visits the left child, then the root, and then the right child. This method retrieves nodes in sorted order for a BST.
Step 4: Understand what pre-order traversal does. Pre-order traversal visits the root first, then the left child, and finally the right child.
Step 5: Realize that since pre-order visits the root before the subtrees, it does not retrieve nodes in sorted order.
Step 6: Conclude that pre-order traversal is not suitable for retrieving nodes in sorted order from a binary search tree.
