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MCQ

Which data structure is used in breadth first search of a graph to hold nodes?

Stack

queue

Tree

Array

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MCQ

What is the time complexity of enqueue operation?

O(logn)

O(nlogn)

O(n)

O(1)

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MCQ

What is the functionality of the following piece of code?

public void function(Object item)
{
	Node temp=new Node(item,trail);
	if(isEmpty())
	{
		head.setNext(temp);
		temp.setNext(trail);
	}
	else
	{
		Node cur=head.getNext();
		while(cur.getNext()!=trail)
		{
			cur=cur.getNext();
		}
		cur.setNext(temp);
	}
	size++;
}

Insert at the front end of the dequeue

Insert at the rear end of the dequeue

Fetch the element at the rear end of the dequeue

Fetch the element at the front end of the dequeue

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MCQ

A priority queue is used to implement a stack S that stores characters PUSH(C)is implemented as INSERT(Q,C,K)where K is an appropriate integer key chosen by the implementation.POP is implemented as DELETEMIN(Q)(Q). For a sequence of operations, the keys chosen are in

Non-increasing order

Non-decreasing order

Strictly increasing order

Strictly decreasing order

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MCQ

Which data structure allows deleting data elements from front and inserting at rear?

Stacks

Queues

Deques

Binary search tree

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MCQ

In case of insertion into a linked queue, a node borrowed from the __________ list is inserted in the queue.

AVAIL

FRONT

REAR

None of the mentioned

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Banking

Engineering

General

Medical

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Medical

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category More Data Structure Topics

Data Structure Basics

Abstract data types

Arrays

Lists

Stacks

Queues

Trees

Binary Trees

B Trees

Heaps

Hash based structures

Graphs

Mixed

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Community Discussion

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More Data Structure Topics