What are null nodes filled with in a threaded binary tree?...

MCQ

What are null nodes filled with in a threaded binary tree?

inorder predecessor for left node and inorder successor for right node information

right node with inorder predecessor and left node with inorder successor information

they remain null

some other values randomly

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MCQ

What is wrong with below code for inorder traversal of inorder threaded binary tree:

inordertraversal(threadedtreenode root):
   threadedtreenode q = inorderpredecessor(root)
   while(q!=root):
   q=inorderpredecessor(q)
   print q.data

inordersuccessor instead of inorderpredecessor must be done

code is correct

it is code for post order

it is code for pre order

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MCQ

A binary tree whose every node has either zero or two children is called

Complete binary tree

Binary search tree

Extended binary tree

None of above

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MCQ

What is the parent for a node

floor(w-1/2)

ceil(w-1/2)

w-1/2

w/2

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MCQ

Sequential search has a time complexity of O(n), and binary search has a time complexity of O(log(n)). What difference will it make when the size n is 1000?

You would not notice much difference because computers run very fast anyway

As n is 1000, binary search is twice as fast as sequential search

As n is 1000, binary search is 10 times as fast as sequential search

As n is 1000, binary search is 100 times as fast as sequential search.

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Herder node is used as sentinel in

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Queues

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Hash based structures

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Mixed

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