What is the result of an in-order traversal of a binary search tree?

Practice Questions

Q1
What is the result of an in-order traversal of a binary search tree?
  1. Nodes in random order
  2. Nodes in descending order
  3. Nodes in ascending order
  4. Nodes in level order

Questions & Step-by-Step Solutions

What is the result of an in-order traversal of a binary search tree?
  • Step 1: Understand what a binary search tree (BST) is. A BST is a tree data structure where each node has at most two children, and for any given node, all values in the left subtree are less than the node's value, and all values in the right subtree are greater.
  • Step 2: Learn what in-order traversal means. In-order traversal is a method of visiting all the nodes in a tree. For a BST, it means visiting the left child, then the node itself, and finally the right child.
  • Step 3: Apply the in-order traversal to a binary search tree. Start at the root node, go to the left child, then visit the node, and finally go to the right child. Repeat this process for each node.
  • Step 4: Notice the order in which you visit the nodes. Since you always visit the left child first, then the node, and then the right child, you will end up visiting the nodes in ascending order.
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