All Hard Articles

ReactJS Reactstrap ButtonGroup Component

Reactstrap is a popular front-end library that is easy to use React Bootstrap 4 components. This library contains the stateless React components for Bootstrap 4.… Read More

Reactstrap

JavaScript

ReactJS

Web Technologies

Minimum length of the subarray required to be replaced to make frequency of array elements equal to N / M

Given an array arr[] of size N consisting of only the first M natural numbers, the task is to find the minimum length of the… Read More

cpp-unordered_map

HashTable

sliding-window

subarray

two-pointer-algorithm

Arrays

DSA

Hash

Mathematical

Count all prime numbers that can be formed using digits of a given number

Given a string S consisting of N digits, the task is to find the number of distinct Prime Numbers that can be formed using the… Read More

Amazon

HashSet

interview-preparation

number-digits

Prime Number

Backtracking

Combinatorial

DSA

Mathematical

Recursion

Strings

JSP Session – Implicit Object

In JSP, the session is the most regularly used implicit object of type HttpSession. It is mainly used to approach all data of the user… Read More

Java-JSP

Java

Data Mining and Recommender Systems

Data mining makes use of various methodologies in statistics and different algorithms, like classification models, clustering, and regression models to exploit the insights which are… Read More

data mining

Picked

Data Mining

Statistical Methods in Data Mining

Data mining refers to extracting or mining knowledge from large amounts of data. In other words, data mining is the science, art, and technology of discovering… Read More

datamining

Picked

Data Mining

Arcesium Interview Experience 2021

Arcesium started an FTE pool drive for some selected IITs and NITs in June 2021. All the eligible candidates were shortlisted for the online test.… Read More

Arcesium

Marketing

Experiences

Interview Experiences

Sandvine Interview Experience | Off-Campus 2021

It was an Off-Campus drive. The entire process was virtual as it was done in the Covid era. First Round: The first round was a… Read More

Marketing

Off-Campus

Sandvine

Experiences

Interview Experiences

Check if elements of a Binary Matrix can be made alternating

Given a 2D array grid[][] of size N * M, consisting of the characters “1”, “0”, and “*”, where “*” denotes an empty space and… Read More

array-rearrange

Design Pattern

DSA

Mathematical

Matrix

Pattern Searching

System Design

Maximize subarrays count containing the maximum and minimum Array element after deleting at most one element

Given an array arr[] of size N. The task is to maximize the count of subarrays that contain both the minimum and maximum elements of… Read More

subarray

two-pointer-algorithm

Arrays

DSA

Greedy

Nagarro Interview Experience for Associate Software Engineer

Associate Software Engineer @ Nagarro The Hiring procedure consists of 4 Rounds. Round-1: In this round. There are some MCQ types of Aptitude and technical… Read More

Marketing

Nagarro

Experiences

Interview Experiences

PayPal Interview Experience for SDE -2 (3.4 Years Experienced)

Hi All, Hope everyone is doing well. I’m sharing my experience with Paypal. Round 1(HackerEarth Test): 2 questions 1.5 hrs https://www.hackerearth.com/problem/algorithm/beautiful-numbers-05de0f51-101121ca/ Based on 2D array… Read More

Marketing

PayPal

Experienced

Experiences

Interview Experiences

Count of N-length binary strings that are repeated concatenations of a substring

Given a positive integer N, the task is to find the number of binary strings of length N that are repeated concatenation of only one… Read More

binary-string

divisors

DSA

Dynamic Programming

Mathematical

Strings

How to create an Avatar generator app in ReactJS ?

In this article, we are going to make a simple avatar generator app that generates random images. In this avatar generator, we have several buttons… Read More

ReactJS-Projects

Web Development Projects

Project

ReactJS

Web Technologies

Difference between Node.js AJAX and jQuery

In this article, we will discuss the difference between NodeJs, AJAX, and JQuery. First, let us discuss JavaScript, JavaScript is one of the fastest-growing programming… Read More

JavaScript-Questions

jQuery-AJAX

jQuery-Questions

NodeJS-Questions

Picked

Web Technologies - Difference Between

Difference Between

JQuery

Node.js

Web Technologies

Gnome Sort Visualizer using JavaScript

In this article, we are going to learn Gnome sort Visualizer using javascript, Gnome Sort also called Stupid sort, is based on the concept of… Read More

javascript-math

JavaScript-Methods

JavaScript-Questions

Sorting Quiz

DSA

JavaScript

Sorting

Web Technologies

Python Set Methods

A Set in Python is a collection of unique elements which are unordered and mutable. Python provides various functions to work with Set. In this… Read More

python-set

Python-set-functions

Python

Minimize cost to sort an Array by swapping any pair of element (X, Y) with cost as (X + Y)

Given an array arr[] consisting of N integers, the task is to find the minimum cost to sort the given array arr[] in ascending order… Read More

Advanced Data Structure

Arrays

C++

Data Structures

DSA

Graph

Hash

Mathematical

Sorting

Minimize moves required to make array elements equal by incrementing and decrementing pairs | Set 2

Given an array arr[] of size N, the task is to print the minimum number of moves required to make all array elements equal by… Read More

array-rearrange

Arrays

DSA

Greedy

Mathematical

Maximum profit after buying and selling the stocks with transaction fees | Set 2

Given an array arr[] of positive integers representing prices of stocks and an integer transactionFee, the task is to find the maximum profit possible after… Read More

Arrays

DSA

Dynamic Programming

Mathematical