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MCQ

The size value of various nodes in a weight balanced tree are leaf

flase

May be

Can't say

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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

Level order traversal of a tree is formed with the help of

breadth first search

depth first search

dijkstra

prims algorithm

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MCQ

Consider the pseudo code below.
Does the below code can check if a binary search tree is an AVL tree?

int avl(binarysearchtree root):
     if(not root)
       return 0
     left_tree_height = avl(left_of_root)
 
     if(left_tree_height== -1) 
       return left_tree_height
 
     right_tree_height= avl(right_of_root)
 
     if(right_tree_height==-1)
       return right_tree_height

yes

May be

Can't say

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MCQ

Why to prefer red-black trees over AVL trees?

Because red-black is more rigidly balanced

AVL tree store balance factor in every node which costs space

AVL tree fails at scale

Red black is more efficient

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MCQ

A treap is a cartesian tree with

additional value, which is a priority value to the key generated randomly

additional value, which is a priority value to the key generated sequentially

additional heap rule

additional operations like remove a range of elements

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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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