All Hard Articles

Count numbers up to N whose GCD with N is less than that number

Given an integer N, the task is to count the values of K ( where 1 ? K? N ), such that 1< GCD(K, N)… Read More

euler-totient

HCF

DSA

Mathematical

Differences between a Matrix and a Tensor

In this article, we will learn about Matrix and Tensor. Matrix : It is a tabular format in which numbers can be represented, like below – … Read More

Picked

Difference Between

FIFO Barbershop in Process synchronization

Overview :In process synchronization, there exists a Sleeping Barber problem, as discussed here. But in the above solution, there is no guarantee that the customers… Read More

Operating Systems

Asynchronous Down Counter

Counter :Counters are used to count the clock pulses. The clock pulses occur at regular intervals. They are used to measure the time and frequency.… Read More

Digital Logic

GATE CS

Difference between Decimal, Float and Double in .Net

Float : It is a floating binary point type variable. Which means it represents a number in it’s binary form. Float is a single precision 32… Read More

Picked

GATE CS

Accolite Digital Pvt Ltd. Interview Experience | Off-Campus 2022

Accolite Digital- SDE1 for Batch of 2022. But I am from 2021, I applied thinking they might allow and luckily they did. Round 0(Aptitude): Accolite… Read More

Accolite

Off-Campus

Experiences

Interview Experiences

Count characters of a string which when removed individually makes the string equal to another string

Given two strings A and B of size N and M respectively, the task is to count characters of the string A, which when removed… Read More

DSA

Greedy

Pattern Searching

Strings

Minimum flips or swapping of adjacent characters required to make a string equal to another

Given two binary strings A and B of length N, the task is to convert the string A to B by either flipping any character… Read More

binary-string

DSA

Greedy

Strings

Mongoose Populate() Method

In MongoDB, Population is the process of replacing the specified path in the document of one collection with the actual document from the other collection.… Read More

MongoDB-method

Mongoose

MongoDB

Node.js

Web Technologies

How to Convert Any Website to Android App in Android Studio?

Here, we are going to make an application for the “GeeksForGeeks” website. By making this application we will be able to learn how we can… Read More

Android-Studio

Android

Java

Kotlin

Project

Prepaging in Operating System

Prerequisite – Virtual Memory in Operating System As suggested by the concept of virtual memory, it is not necessary that the entire process should be… Read More

GATE CS

Operating Systems

Sum of Bitwise XOR of elements of an array with all elements of another array

Given an array arr[] of size N and an array Q[], the task is to calculate the sum of Bitwise XOR of all elements of… Read More

Bitwise-XOR

setBitCount

Arrays

Bit Magic

Competitive Programming

Data Structures

DSA

Mathematical

3 Important Things to Know About State in React

React… We all know the popularity of this framework among developers or programmers. React sit on the top of all the popular JavaScript library. It… Read More

GBlog

ReactJS

Web Technologies

Kth Smallest Element in a sorted array formed by reversing subarrays from a random index

Given a sorted array arr[] of size N and an integer K, the task is to find Kth smallest element present in the array. The… Read More

Binary Search

Arrays

Divide and Conquer

DSA

Greedy

Mathematical

Searching

Search an element in a sorted array formed by reversing subarrays from a random index

Given a sorted array arr[] of size N and an integer key, the task is to find the index at which key is present in… Read More

Binary Search

Arrays

DSA

Greedy

Mathematical

Searching

Setting custom splash screen in Kivy android app

Kivy is a platform-independent GUI tool in Python. It can run on Android, IOS, Linux and Windows, etc. This is the only GUI library from… Read More

Python-kivy

Python

Java Program to Illustrate String Interpolation

String Interpolation is a process in which the placeholder characters are replaced with the variables (or strings in this case) which allow to dynamically or… Read More

Java-String-Programs

Picked

Java

Java Programs

Handling timezone in Python

There are some standard libraries we can use for timezones, here we’ll use pytz. This library has a timezone class for handling arbitrary fixed offsets… Read More

Picked

Python-datetime

Python

Java Program to Get Today’s Date

Java is the most powerful programming language, by which we can perform many tasks and Java is an industry preferable language. So it is filled… Read More

Java-Date-Time

Picked

Java

Java Programs

Count N-digit numbers whose digits does not exceed absolute difference of the two previous digits

Given an integer N, the task is to count the number of N-digit numbers such that each digit, except the first and second digits, is… Read More

number-digits

DSA

Dynamic Programming

Mathematical

Recursion