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MCQ

To restore the AVL property after inserting a element, we start at the insertion point and move towards root of that tree. is this statement true?

May be

Can't say

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MCQ

What is the below pseudo code trying to do, where pt is a node pointer and root pointer.

redblack(Node root, Node pt) :
    if (root == NULL)
       return pt
 
    if (pt.data < root.data)
    {
        root.left  =   redblack(root.left, pt);
        root.left.parent = root
    }
    else if (pt.data > root.data)
    {
        root.right = redblackt(root.right, pt)
        root.right.parent = root
    }
   return root

insert a new node

delete a node

search a node

count the number of nodes

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MCQ

What is the space complexity of the in-order traversal in the recursive fashion? (d is the tree depth and n is the number of nodes)

O(1)

O(nlogd)

O(logd)

O(d)

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MCQ

What are double and single threaded trees?

when both left, right nodes are having null pointers and only right node is null pointer respectively

having 2 and 1 node

using single and double linked lists

using heaps and priority queues

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MCQ

In an arbitrary tree ( not a search tree) of order M. Its size is N, and its height is K. The computation time needed to find a data item on T is

O(K*K)

O(M*M)

O(N)

O(K)

Discussion

MCQ

What is one of the most common operations that is performed on trees?

Traversal of nodes

Threads

Pointers

None of the above

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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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