All Hard Articles

Minimum number of array elements from either ends required to be subtracted from X to reduce X to 0

Given an array nums[] and an integer X, the task is to reduce X to 0 by removing either the leftmost or the rightmost array… Read More

two-pointer-algorithm

Arrays

DSA

Greedy

Mathematical

Searching

Different Ways to Add Image to Toast in Android

A Toast is a feedback message. It takes very little space for displaying while the overall activity is interactive and visible to the user. It… Read More

Android

Java

How to Create a Pull Request on GitHub using Android Studio?

Android is an operating system that is built basically for Mobile phones. It is based on the Linux Kernel and other open-source software and is… Read More

Android-Studio

Android

Git

Helpshift Interview Experience | On-Campus 2021(Virtual)

Helpshift visited my college for Campus Placements in the month of February for the role of Software Engineer. The job description for the profile was… Read More

Helpshift

On-Campus

Aptitude

Experiences

Interview Experiences

Placements

Difference between forEach and for loop in Javascript

For Loop The JavaScript for loop is used to iterate through the array or the elements for a specified number of times. If a certain… Read More

javascript-basics

Picked

JavaScript

Web Technologies

How to implement BarChart in ReactJS ?

In our React app sometimes we want to display a BarChart representation of a particular data. We can use react-chartjs-2 and chart.js module in ReactJS… Read More

React-Questions

Technical Scripter 2020

ReactJS

Technical Scripter

Web Technologies

Merge transactions in bank sheets in the order of their occurrence such that their sum remains positive

Given an array arr[][] consisting of N lists representing N transactions, the task is to merge the given lists of transactions in the order of… Read More

array-merge

Google

interview-preparation

priority-queue

DSA

Heap

Linked List

Sorting

GATE | GATE CS 2021 | Set 2 | Question 58

Consider a three-level page table to translate a 39-bit virtual address to a physical address as shown below: The page size is 4 KB =… Read More

GATE

GATE | GATE CS 2021 | Set 2 | Question 53

Consider a computer system with multiple shared resource types, with one instance per resource type. Each instance can be owned by only one process at… Read More

GATE

Minimize removals to remove another string as a subsequence of a given string

Given two strings str and X of length N and M respectively, the task is to find the minimum characters required to be removed from… Read More

subsequence

DSA

Dynamic Programming

Matrix

Strings

Delete Kth nodes from the beginning and end of a Linked List

Given a singly Linked List and an integer K denoting the position of a Linked List, the task is to delete the Kth node from… Read More

Delete a Linked List

two-pointer-algorithm

DSA

Linked List

How to download Files with Scrapy ?

Scrapy is a fast high-level web crawling and web scraping framework used to crawl websites and extract structured data from their pages. It can be… Read More

Picked

Python-Scrapy

Python

Adding error bars to a line graph with ggplot2 in R

ggplot2 is an R language plotting package that creates complex plots from data in a data frame. It describes what variables to plot, how they… Read More

Picked

R-ggplot

Technical Scripter 2020

R Language

Technical Scripter

Create Multiple Pie Charts using ggplot2 in R

Pie Chart, also known as circle chart, is the graphical representation of the relative size or frequency of the data in a circular format. Basically,… Read More

Picked

R-ggplot

Technical Scripter 2020

R Language

Technical Scripter

ForkJoinPool Class in Java with Examples

The ForkJoinPool class is the center of the fork/join framework, which is an implementation of the ExecutorService interface. ForkJoinPool class is an extension of the… Read More

Picked

Technical Scripter 2020

Java

Technical Scripter

Blocking Methods in Java

Blocking methods in java are the particular set of methods that block the thread until its operation is complete. So, they will have to block… Read More

Java-Multithreading

Picked

Java

How to create Shopping Cart Button in ReactJS?

A shopping cart button is one of the most used component in e-commerce websites or applications which allows users to add items to their cart… Read More

Material-UI

React-Questions

ReactJS

Web Technologies

Get Enumeration over Java HashSet

The HashSet class implements the Set interface, backed by a hash table which is a HashMap instance. There is no assurance as to the iteration… Read More

Java-Enumeration

java-hashset

Picked

Java

Java Programs

Goldman Sachs Interview Experience | Off-Campus

Content Removed

Goldman Sachs

Off-Campus

Experiences

Interview Experiences

SimpleFormatter in Java Logging API

Logging is much useful for any software application and that helps to find out the execution of the project at multiple scenarios. In Java, java.util… Read More

Picked

Technical Scripter 2020

Java

Technical Scripter