# What is inorder traversal of a binary search tree?

Table of Contents

## What is inorder traversal of a binary search tree?

3. Inorder Traversal. An inorder traversal first visits the left child (including its entire subtree), then visits the node, and finally visits the right child (including its entire subtree). The binary search tree makes use of this traversal to print all nodes in ascending order of value.

## How do you construct a binary search tree from inorder traversal?

Construct Special Binary Tree from given Inorder traversal

- Find index of the maximum element in array.
- Create a new tree node ‘root’ with the data as the maximum value found in step 1.
- Call buildTree for elements before the maximum element and make the built tree as left subtree of ‘root’.

**How do you construct a binary tree from preorder and inorder traversal?**

Construct Tree from given Inorder and Preorder traversals

- Pick an element from Preorder.
- Create a new tree node tNode with the data as the picked element.
- Find the picked element’s index in Inorder.
- Call buildTree for elements before inIndex and make the built tree as a left subtree of tNode.

### Which of the following is the inorder traversal sequence of the given BST?

So, the In-order traversal of the BST is: 10, 15, 20, 23, 25, 30, 35, 39, 42. Hence, the correct answer is “option 4”.

### What is inorder successor and predecessor in BST?

If the given node is visited first in the inorder traversal, then its predecessor is NULL. 2. The successor of a node in BST is that node that will be visited immediately after the given node in the inorder traversal of the tree. If the given node is visited last in the inorder traversal, then its successor is NULL.

**How do you find the inorder on a traversal?**

For Inorder, you traverse from the left subtree to the root then to the right subtree. For Preorder, you traverse from the root to the left subtree then to the right subtree. For Post order, you traverse from the left subtree to the right subtree then to the root.

## How do I convert inorder to preorder traversal?

Preorder (tree root)

- Visit the root.
- Traverse left subtree of node pointed by root, call inorder ( rootâ†’left )
- Traverse right subtree of node pointed by root, call inorder ( rootâ†’right )

## What is the outcome of inorder traversal on the following binary search tree?

Inorder traversal of a binary search tree always yields all the nodes in increasing order.

**What is correct about the inorder traversal of binary search tree Mcq?**

Explanation: In case of Binary Search Trees (BST), inorder traversal always sorts the tree nodes into ascending order.

### How do I find the inorder predecessor?

To find which ancestors are the predecessor, move up the tree towards the root until we encounter a node that is the right child of its parent. If any such node is found, then the inorder predecessor is its parent; otherwise, the inorder predecessor does not exist for the node.