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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

The property of binary tree is

The first subset is called left subtree

The second subtree is called right subtree

The root cannot contain NULL

The right subtree can be empty

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The number of nodes in a complete binary tree of depth d (with root at depth 0) is

2^(d?1) +1

2^(d+1) -1

2^(d?1) -1

2^(d+1) +1

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The number of unused pointers in a complete binary tree of depth 5 is:

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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

Discussion

MCQ

Traversing a binary tree first root and then left and right subtrees called _______traversal.

inorder

preorder

postorder

none of these

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Arrays

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Stacks

Queues

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Binary Trees

B Trees

Heaps

Hash based structures

Graphs

Mixed

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