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Reduce the array to a single integer with the given operation

Given an array arr[] of N integers from 1 to N. The task is to perform the following operations N – 1 times. Select two… Read More

priority-queue

Arrays

DSA

Heap

JavaScript Get the text of a span element

In this article, we are given an HTML document and the task is to get the text of an <span> element. There are two methods… Read More

JavaScript-Questions

JavaScript

Web Technologies

Difference between Steganography and Cryptography

Steganography and cryptography are critical components of network security. Network security has emerged as an essential part of today’s communication infrastructure. There was an urgent… Read More

Computer Networks

Difference Between

GATE CS

Difference between Hub and Switch

Prerequisite – Network Devices Hub: Hub is a networking devices which is used to transmit the signal to each port (except one port) to respond… Read More

Computer Networks

Difference Between

GATE CS

Difference between Virtual memory and Cache memory

Cache Memory: Cache memory increases the accessing speed of CPU. It is not a technique but a memory unit i.e a storage device. In cache… Read More

Computer Organization & Architecture

Difference Between

GATE CS

Operating Systems

Difference between Fast Ethernet and Gigabit Ethernet

Ethernet is the most widely used LAN technology defined under IEEE standards 802.3. Fast Ethernet network uses cables called twisted pair or CAT5. It can… Read More

Computer Networks

Difference Between

Difference between Ethernet and LAN

In practical, concept of LAN have possible because of Ethernet. The main difference between Ethernet and LAN is that Ethernet’s working function is decentralized on… Read More

Computer Networks

Difference Between

GATE CS

Difference between Super Key and Candidate Key

Super Key: Super Key is an attribute (or set of attributes) that is used to uniquely identifies all attributes in a relation. All super keys can’t… Read More

DBMS

Difference Between

GATE CS

Python | os.path.exists() method

os.path.exists() method in Python is used to check whether the specified path exists or not. This method can be also used to check whether the given… Read More

python-os-module

Python

Generate two BSTs from the given array such that maximum height among them is minimum

Given an array of n integers where n is greater than 1, the task is to make two Binary Search Tree from the given array… Read More

math

Arrays

Binary Search Tree

Data Structures

DSA

Sort an alphanumeric string such that the positions of alphabets and numbers remain unchanged

Given an alphanumeric string str, the task is to sort the string in such a way that if a position is occupied by an alphabet… Read More

frequency-counting

DSA

Sorting

Strings

Bagging vs Boosting in Machine Learning

As we know, Ensemble learning helps improve machine learning results by combining several models. This approach allows the production of better predictive performance compared to… Read More

Machine Learning

Difference between Static and Dynamic Routing

Both Static routing and Dynamic routing are the Types of Routing. Static Routing: Static Routing is also known as non-adaptive routing which doesn’t change the… Read More

Computer Networks

Difference Between

GATE CS

Difference between File Transfer Protocol (FTP) and Secure File Transfer Protocol (SFTP)

FTP (File Transfer Protocol) It is a protocol that is used to transfer or copy the file from one host to another host. But there… Read More

Computer Networks

Difference Between

Difference between site to site VPN and remote access VPN

Both Site to site VPN and Remote access VPN are the types of VPN which stands for Virtual Private Network. Site-to-Site VPN is also known… Read More

Computer Networks

Difference Between

Difference between Block Cipher and Stream Cipher

Prerequisite – Block cipher modes of operation Block Cipher and Stream Cipher belongs to the symmetric key cipher. These two block ciphers and stream cipher… Read More

Computer Networks

Difference Between

Python | os.getenv() method

OS module in Python provides functions for interacting with the operating system. OS comes under Python OS env standard utility modules. This module provides a portable… Read More

python-os-module

Python

iconphoto() method in Tkinter | Python

iconphoto() method is used to set the titlebar icon of any tkinter/toplevel window. But to set any image as the icon of titlebar, image should… Read More

Python-gui

Python-tkinter

Python

AngularJS Services

The Services is a function or an object that avails or limit to the application in AngularJS, ie., it is used to create variables/data that… Read More

AngularJS-Basics

Picked

AngularJS

Web Technologies

Partial Orders and Lattices (Set-2) | Mathematics

Prerequisite: Partial Orders and Lattices | Set-1 Well Ordered Set – Given a poset, (X, ≤) we say that ≤ is a well-order (well-ordering) and that… Read More

Engineering Mathematics

Python