All Hard Articles

Explain the difference between undefined and not defined in JavaScript

In JavaScript, they both are related to memory space and there is a very simple difference between them. If the variable name which is being… Read More

JavaScript-Questions

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JavaScript

Web Technologies

What are the classes of breadcrumb in Materialize CSS ?

Materialize is a modern responsive CSS framework based on Material Design by Google. Its goal is to develop a system of design that allows integrated… Read More

Materialize-CSS

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CSS

Web Technologies

Show that 500 is not a perfect square

The method to represent and work with numbers is known as the number system. A number system is a system of writing to represent numbers.… Read More

Maths-Formulas

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Mathematics

School Learning

McKinsey Interview Experience for Software Associate Internship

Mckinsey has visited the college campus on April 2021 for an Internship (Jan-Jul 2022) for the role of Software associate. Round 1: The first… Read More

Marketing

Mckinsey

Experiences

Internship

Interview Experiences

Societe Generale Interview Experience 2021 (Virtual)

Round 1(Online Test): Round 1 was a 90 mins test with the eligibility criteria of 6 CGPA and CSE/IT/ECE branches, which had sections as follows:… Read More

Marketing

Societe Generale

Experiences

Interview Experiences

Find remainder when a number A raised to N factorial is divided by P

Given three integers A, N and P, the task is to find (A^(N!)) % P. Examples: Input: A = 2, N = 1, P =… Read More

factorial

maths-power

Modular Arithmetic

Divide and Conquer

DSA

Mathematical

Construct a Graph from size of components for each node

Given an array A[] of size N, for each index i in the range [0, N) the value A[i] denotes the size of the connected… Read More

connected-components

DSA

Graph

Greedy

Hash

Count ways to split an array into subarrays such that sum of the i-th subarray is divisible by i

Given an array arr[] consisting of N integers, the task is to find the number of ways to split the array into non-empty subarrays such… Read More

partition

prefix-sum

subarray

subarray-sum

Arrays

DSA

Dynamic Programming

Check if it is possible to reach the point (X, Y) using distances given in an array

Given an array arr[] consisting of N positive integers and two integers X and Y, the task is to check if it is possible to… Read More

Coordinate Geometry

DSA

Geometric

Mathematical

Minimum number of characters required to be added to a String such that all lowercase alphabets occurs as a subsequence in increasing order

Given a string S consisting of N characters, the task is to find the minimum number of characters that must be added to S such… Read More

subsequence

DSA

Strings

How to create a tabbed navigation menu in Bootstrap ?

A navigation bar is used in every website to make it more user-friendly so that the navigation through the website becomes easy and the user… Read More

Bootstrap-4

Bootstrap-Questions

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Bootstrap

HTML

Web Technologies

Build Your First Router in Node.js with Express

Express.js is a powerful framework for node.js. One of the main advantages of this framework is defining different routes or middleware to handle the client’s… Read More

NodeJS-Questions

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routing

Express.js

Node.js

Web Technologies

Project Idea | CodePal

Description: “A Visual Studio Code Extension to help Codeforces Users Code with Convenience” CodePal is a Visual Studio Code Extension to help Codeforces Users Code… Read More

ProGeek 2021

Project-Ideas

ProGeek

How to Use For Next Loop in Excel VBA?

If you are familiar with the programming you must have an idea of what a loop is, In computer programming, a loop is a sequence… Read More

Excel-VBA

Picked

Excel

Check if chords of a Circle are symmetric after some rotation

Given two Integers N and M, N indicating equidistant points on circumference of a circle and M indicating number of chords formed with those points.… Read More

circle

DSA

Geometric

Mathematical

Find the subset of Array with given LCM

Given an array arr[] consisting of N positive integers and a positive integer X, the task is to find the subset of the given array… Read More

GCD-LCM

number-theory

subset

Arrays

DSA

Mathematical

Check if it is possible to reach (X, Y) from origin such that in each ith move increment x or y coordinate with 3^i

Given two positive integers X and Y, the task is to find whether a point (X, Y) can be reached from the point (0, 0)… Read More

Coordinate Geometry

Bit Magic

DSA

Geometric

Mathematical

How to manage users in socket.io in Node.js ?

Socket.IO is a library that enables real-time, bidirectional, and event-based communication between the browser and the server. Managing users in Socket.io and Node.js typically involves… Read More

HTTP

NodeJS-Questions

Picked

React-Questions

Socket-programming

JavaScript

Node.js

ReactJS

Web Technologies

Arcesium Internship Interview Experience 2021

Company: Arcesium Role: Software Development Engineer Intern(2months) Eligibility criteria for online test: CGPA – 7 for CSE/IT and 8 for ECE etc. They also consider… Read More

Arcesium

Marketing

Experiences

Internship

Interview Experiences

What is Plagiarism? Definition, Types, How to Avoid, Laws

Plagiarism is derived from the Latin word “Plagiarius” meaning “kidnapper”. Plagiarism means stealing or copying another’s work and representing it as own work. On Internet,… Read More

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Class 11

School Learning

School Programming