All Hard Articles

Maximum amount of capital required for selecting at most K projects

Given an integer N, representing number of projects, two arrays P[] and C[], consisting of N integers, and two integers W and K where, W… Read More

cpp-priority-queue

min-heap

DSA

Greedy

Heap

Mathematical

Sorting

Improvement on the Quick Sort Algorithm

Prerequisite: QuickSort Algorithm The quicksort algorithm discussed in this article can take O(N2) time in the worst case. Hence, certain variations are needed which can… Read More

Quick Sort

Technical Scripter 2020

Analysis of Algorithms

DSA

Sorting

Technical Scripter

How to align item baseline of the container ?

In this article, we will learn how to align items to the baseline of the container. There are three types of alignments in CSS, baseline… Read More

CSS-Properties

CSS-Questions

Picked

CSS

Web Technologies

How to put ReactJS component inside HTML string ?

Putting the React JS component inside the HTML library is not recommended and may lead to conflict in React lifecycle methods. But it can be… Read More

Picked

React-Questions

ReactJS

Web Technologies

How to make a HTML link that forces refresh ?

In this article, we will learn to make an HTML link that forces refresh. HTML <meta> http-equiv attribute with refresh value specified in meta element… Read More

HTML-Attributes

HTML-Questions

HTML-Tags

Picked

HTML

Web Technologies

JavaScript WeakMap() Constructor

The WeakMap() Constructor produces WeakMap objects that are a key/value pair array in which the key is referenced weakly. The keys should be objects and… Read More

Constructors

JavaScript-Weakmap

Picked

JavaScript

Web Technologies

JavaScript Property Accessors Method

Property Accessors allow access with the property name or keys of an object (Reading, Creating, Updating). There are two notations in JavaScript that allows us… Read More

JavaScript-Methods

Picked

JavaScript

Web Technologies

Joining 4 Tables in SQL

The purpose of this article is to make a simple program to Join two tables using Join and Where clause in SQL. Below is the… Read More

DBMS-SQL

Picked

SQL

Program to find the Nth Composite Number

Given a positive integer N, the task is to find the Nth Composite Number. Examples: Input: N = 1Output: 4 Input: N = 3 Output: 8… Read More

Prime Number

sieve

DSA

Mathematical

Searching

SQL Full Outer Join Using Left and Right Outer Join and Union Clause

An SQL join statement is used to combine rows or information from two or more than two tables on the basis of a common attribute… Read More

Picked

SQL-Query

SQL

Find the Platform at which the given Train arrives

Given a 2D array arr[][3] consisting of information of N trains where arr[i][0] is the train number, arr[i][1] is the arrival time, and arr[i][2] is… Read More

min-heap

priority-queue

Arrays

DSA

Greedy

Heap

Searching

Sorting

NCR Corporation Interview Experience for SDE (Off-Campus)

Round 1(Written Test and Coding): This round was conducted by Hacker Earth on 2nd Oct. 2020 for 150 minutes. It consists of 33 multiple choices… Read More

NCR Corporation

Off-Campus

Experiences

Interview Experiences

Amazon Web Services – Using Single SSH Key For all AWS Regions

Secure Shell also known as SSH is a cryptographic network protocol that helps secure network services over an unsecured network. It securely helps users to… Read More

Cloud-Computing

Amazon Web Services

DevOps

DarkSide – Information Gathering & Social Engineering Tool in Kali Linux

DarkSide is a free and open-source tool available on GitHub. This tool is free means you can download and use this tool free of cost.… Read More

Cyber-security

Kali-Linux

Linux-Tools

Linux-Unix

Osi.Ig – Information Gathering Instagram Tool in Kali Linux

Osi.Ig stands for Open Source Intelligence. Osi is a free and open-source tool used to perform reconnaissance on Instagram accounts/profiles. This is a free and… Read More

Cyber-security

Kali-Linux

Linux-Tools

Linux-Unix

How to Sync File and Directories to Cloud Storage in Linux Using Rclone Tool?

Rclone is a command-line tool for synchronizing files and directories between Google Drive, Amazon S3, Openstack Swift / Rackspace cloud files / Memset Memstore, Dropbox,… Read More

Linux-Tools

Picked

How To

Linux-Unix

The @SuppressWarnings Annotation in Java

Annotations are a very important part of Java in modern technologies, Most of the technologies such as Hibernate, Spring, Spring Boot, JPA, and so Many… Read More

Picked

Java

Bernoulli Distribution in R

Bernoulli Distribution is a special case of Binomial distribution where only a single trial is performed. It is a discrete probability distribution for a Bernoulli… Read More

Picked

R-Mathematics

R Language

How to Disable back button on android for kivy app ?

In this article, we will develop a GUI window using kivy framework of python, and we will disable the android back button from the window.… Read More

Python-kivy

Python

Extract every Nth element of a vector in R

In this article, we will see how to extract every Nth element from a vector in R Programming Language. Method 1: Using iteration An iteration… Read More

Picked

R Vector-Programs

R-Vectors

R Language

R Programs