Why do we use inorder traversal?

In-order traversal is very commonly used on binary search trees because it returns values from the underlying set in order, according to the comparator that set up the binary search tree. Post-order traversal while deleting or freeing nodes and values can delete or free an entire binary tree.

What is the peculiarity of the inorder traversal?

What is the speciality about the inorder traversal of a binary search tree? Explanation: As a binary search tree consists of elements lesser than the node to the left and the ones greater than the node to the right, an inorder traversal will give the elements in an increasing order. 4.

What is Postorder traversal good for?

Postorder traversal is also useful to get the postfix expression of an expression tree.

What is the purpose of preorder traversal?

Pre-order: Used to create a copy of a tree. For example, if you want to create a replica of a tree, put the nodes in an array with a pre-order traversal. Then perform an Insert operation on a new tree for each value in the array. You will end up with a copy of your original tree.

What is the Speciality about the inorder traversal of a binary search tree it traverses in a non increasing order?

Discussion Forum

Que.	What is the speciality about the inorder traversal of a binary search tree?
b.	It traverses in an increasing order
c.	It traverses in a random fashion
d.	None of the mentioned
	Answer:It traverses in an increasing order

Which of the following best defines post order traversal?

Definition: Process all nodes of a tree by recursively processing all subtrees, then finally processing the root. Also known as postfix traversal.

How do you find the kth largest item in a binary tree?

To find Kth largest element in a Binary search tree, the simplest logic is to do reverse inorder traversal and while doing reverse inorder traversal simply keep a count of number of Nodes visited. When the count becomes equal to k, we stop the traversal and print the data.

What is true about post order traversal of tree?

Explanation: In postorder traversal the left subtree is traversed first and then the right subtree and then the current node. So, the posturer traversal of the tree is, S W T Q X U V R P.

How to find the k-th smallest element in the left subtree?

Since we need K-th smallest element, we can maintain number of elements of left subtree in every node. Assume that the root is having N nodes in its left subtree. If K = N + 1, root is K-th node. If K < N, we will continue our search (recursion) for the Kth smallest element in the left subtree of root.

How do you find the kth smallest node in a tree?

Assume that the root is having ‘lCount’ nodes in its left subtree. If K = lCount + 1, root is K-th node. If K < lCount + 1, we will continue our search (recursion) for the Kth smallest element in the left subtree of root. If K > lCount + 1, we continue our search in the right subtree for the (K – lCount – 1)-th smallest element.

How do you find the kth smallest element in an array?

1 Build a Max-Heap MH of the first k elements (arr [0] to arr [k-1]) of the given array. O (k) 2 For each element, after the k’th element (arr [k] to arr [n-1]), compare it with root of MH. 3 Finally, the root of the MH is the kth smallest element.

How to find the kth element in BST?

Finding kth element in BST is quite simple. We know that all the elements in left subtree is smaller than all the elements in right subtree. If we count the number of elements in left and right subtree then we know in which subtree the required element exists and then we move to this subtree and repeat the same steps again.