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MCQ

Why we prefer threaded binary trees?

storage required by stack and queue is more

pointers in most of nodes of a binary tree are NULL

difficult to find a successor node

all of the mentioned

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MCQ

In the array representation, what is represented sequentially in memory using a single one-dimensionalarray?

Binary tree

Stacks

Nodes

None of the above

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MCQ

The pre-order traversal of a binary-search tree is DBACFE. What is the post-order traversal?

ABFCDE

ADBFEC

ABFEDC

ACBEFD

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MCQ

What are the children for node

2w and 2w+1

2+w and 2-w

w+1/2 and w/2

w-1/2 and w+1/2

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MCQ

What is the time complexity for finding the height of the binary tree?

h = O(loglogn)

h = O(nlogn)

h = O(n)

h = O(log n)

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MCQ

If the tree is not a complete binary tree then what changes can be made for easy access of children of a node in the array ?

every node stores data saying which of its children exist in the array

no need of any changes continue with 2w and 2w+1, if node is at i

keep a seperate table telling children of a node

use another array parallel to the array with tree

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Abstract data types

Arrays

Lists

Stacks

Queues

Trees

Binary Trees

B Trees

Heaps

Hash based structures

Graphs

Mixed

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