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Count of elements which cannot form any pair whose sum is power of 2

Given an array arr[] of length N, the task is to print the number of array elements that cannot form a pair with any other… Read More

cpp-map

frequency-counting

maths-power

Arrays

Bit Magic

C++ Programs

DSA

Hash

Selenium Base Mini Project Using Python

Project Description:-Here, we’re going to study a simple SMS bomber trick (for amusing and educational purpose). Selenium is a free tool for automated trying out… Read More

Python Selenium-Exercises

Python-projects

Python-selenium

Python

Gmail Login using Python Selenium

Python scripting is one of the most intriguing and fascinating things to do meanwhile learning Python. Automation and controlling the browser is one of them.… Read More

Picked

Project

Python

How to Merge/Combine Arrays using JavaScript ?

There are many ways of merging arrays in JavaScript. We will discuss two problem statements that are commonly encountered in merging arrays: Merge without removing… Read More

JavaScript-Misc

JavaScript

Web Technologies

How to scroll to specific element using jQuery ?

Many times, in our website we want to scroll automatically to a section of the webpage when we click on a button or a heading… Read More

jQuery-Questions

Picked

JQuery

Web Technologies

JavaScript String Methods

JavaScript strings are the sequence of characters. They are treated as Primitive data types. In JavaScript, strings are automatically converted to string objects when using… Read More

JavaScript-Methods

javascript-string

JavaScript

Web Technologies

How to get user location in Android

Many apps in Android uses user’s locations be it for ordering cabs or delivering food and items. Here, a simple android app that would return… Read More

android

How To

Java

Write From Home

Puzzle | 50 red marbles and 50 blue marbles

Give two boxes B1 and B2 one have 50 red marbles and other have 50 blue marbles. A ball is selected randomly from any of… Read More

Analytical Mathematical Puzzles

Placements

Puzzles

Loop or Iterate over all or certain columns of a dataframe in Python-Pandas

Pandas DataFrames facilitate column-wise iteration, allowing convenient access to elements in each column. In this article, we will discuss how to loop or Iterate overall… Read More

Python pandas-dataFrame

Python-pandas

Python

Implement Canny Edge Detector in Python using OpenCV

In this article, we will learn the working of the popular Canny edge detection algorithm developed by John F. Canny in 1986. Usually, in Matlab… Read More

OpenCV

Python-OpenCV

Python

Count of pairs whose bitwise AND is a power of 2

Given an array arr[] of N positive integers. The task is to find the number of pairs whose Bitwise AND value is a power of… Read More

Bitwise-AND

maths-power

Algorithms

Arrays

Bit Magic

Competitive Programming

DSA

Mathematical

Find elements in a given range having at least one odd divisor

Given two integers N and M, the task is to print all elements in the range [N, M] having at least one odd divisor.Examples: Input:… Read More

array-range-queries

divisors

maths-power

Bit Magic

DSA

Mathematical

Pattern Searching

Postman Interview Experience for Software Engineer Intern

After applying to Postman’s official site in the month of June’20, I received the link for the HackerEarth test within a few days. First Round:… Read More

Marketing

Postman

Experiences

Internship

Interview Experiences

Amazon Interview Experience | AmazeWow 2020

Round 1: Online Assessment The AmazeWow assessment was of 30 questions including 2 coding questions. https://www.geeksforgeeks.org/counting-inversions https://www.geeksforgeeks.org/number-of-ways-to-get-a-given-sum-with-n-number-of-m-faced-dices/ Other 28 MCQs were based on technical portion… Read More

Amazon

Amazon-WoW

Marketing

Experiences

Interview Experiences

How to get the new image URL after refreshing the image using JavaScript ?

The browser cache relies on the image URL to decide whether the image is the same or not and whether to use the stored version.… Read More

JavaScript-Questions

Picked

JavaScript

Web Technologies

What is the meaning of –save for NPM install ?

NPM (Node Package Manager) is the default package manager employed in JavaScript runtime environment in Node.js. It has a very frequently used command npm install… Read More

Node.js-Misc

Picked

Node.js

Web Technologies

Introduction to Netcat

Netcat or NC is a utility tool that uses TCP and UDP connections to read and write in a network. It can be used for… Read More

Computer Networks

Web Technologies

Why we use then() method in JavaScript ?

The then() method in JavaScript has been defined in the Promise API and is used to deal with asynchronous tasks such as an API call.… Read More

javaScript

JavaScript-Questions

Picked

Web technologies

JavaScript

Web Technologies

Similarities and Difference between Java and C++

Nowadays Java and C++ programming languages are vastly used in competitive coding. Due to some awesome features, these two programming languages are widely used in… Read More

C++

Difference Between

Java

Write From Home

Short Note on Size-Oriented Metrics

Size-oriented metrics play a fundamental role in software development by measuring and comparing software project sizes based on various factors. This article explores the concept… Read More

Software Engineering