All Hard Articles

Multi-Line Comment in Shell Script

Comments are quite a crucial part of a program or a code-base. It helps in understanding the code, improves code-readability, and also helps in enhancing… Read More

Picked

Shell Script

Linux-Unix

Minimum number of cameras required to monitor all nodes of a Binary Tree

Given a Binary Tree consisting of N nodes, the task is to find the minimum number of cameras required to monitor the entire tree such… Read More

Binary Tree

DFS

PostOrder Traversal

tree-traversal

DSA

Dynamic Programming

Mathematical

Recursion

Tree

Goldman Sachs Internship Interview Experience | Off-Campus 2021

I applied through the company’s career portal, applications opened on January 20, 2021, and closed on February 8, 2021. I received an invitation for the… Read More

Goldman Sachs

Off-Campus

Experiences

Internship

Interview Experiences

Find all distinct quadruplets in an array that sum up to a given value

Given an array arr[] consisting of N integers and an integer K, the task is to print all possible unique quadruplets (arr[i], arr[j], arr[k], arr[l])… Read More

HashSet

HashTable

Java-ArrayList

Java-HashMap

Picked

Algorithms

Arrays

Data Structures

DSA

Hash

Java

Java Programs

Mathematical

Technical Scripter

Check if N can be represented as sum of positive integers containing digit D at least once

Given a positive integer N and a digit D, the task is to check if N can be represented as a sum of positive integers… Read More

number-digits

Numbers

DSA

Mathematical

SQL Query to Get a Financial Year Using a Given Date

Here, we are going to Get a Financial Year Using a Given Date in SQL. In this article, we will be making use of the… Read More

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SQL-Query

SQL

How to check validation of IP Address in jQuery ?

In this article, we will find how to validate the IP Address using jQuery. IP Address: Every computer connected to the Internet is identifiable by… Read More

JavaScript-RegExp

jQuery-Basics

Picked

JQuery

Web Technologies

How P2P can scale by itself

In this article, we will discuss the overview of client-server and peer to peer and will understand both with the help of example and will… Read More

Computer Networks

PostgreSQL – SQL Optimization

PostgreSQL is the most advanced general-purpose open source database in the world. pgAdmin is the most popular management tool or development platform for PostgreSQL. It… Read More

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PostgreSQL

Flutter – Creating Dialog in using GetX Library

When we want to show anything in the form of the dialog then we can create this Dialog using the GetX library in Flutter. When… Read More

Flutter UI-components

Dart

Flutter

Cadence Interview Experience for Software Engineer

Cadence Design Systems, Bangalore | Software Engineer I (C/C++) | 2021 Position: Software Engineer Experience: 6 months. Location: Bangalore Interview Process : Call from a… Read More

Cadence

Experiences

Interview Experiences

MayaData/ChaosNative Interview Experience (On-Campus)

I am compiling my personal notes and experience of interviews at MayaData(On-Campus). Hope this might help you. There is no clear pattern of Placement/Coding interviews,… Read More

MayaData

On-Campus

Algorithms

Competitive Programming

CS - Placements

Data Structures

DSA

Dynamic Programming

Experiences

Interview Experiences

Placements

Project

Minimum difference possible between two given numbers by rearranging their digits in the same order

Given two N-digit positive integers X and Y, the task is to find the minimum absolute difference between both the integers possible by rearranging the… Read More

number-digits

permutation

Arrays

Combinatorial

Competitive Programming

DSA

Mathematical

Shell Script to Demonstrate the Use of Shell Function Library

Shell Function Library is basically a collection of functions that can be accessed from anywhere in the development environment. It actually makes shell scripting a… Read More

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Shell Script

Linux-Unix

Fix “SDK tools directory is missing” Error in Android Studio

Sometimes it happens with developers that when he/she starts the “android studio” program, displayed a window of “downloading components” which says: “Android SDK was installed… Read More

Android-Studio

Picked

Android

How to create PySpark dataframe with schema ?

In this article, we will discuss how to create the dataframe with schema using PySpark. In simple words, the schema is the structure of a… Read More

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Python-Pyspark

Python

How Linux Kernel Boots?

Many processes are running in the background when we press the system’s power button. It is very important to learn the booting process to understand… Read More

linux

Linux-Unix

How to Calculate Critical t-Value in R ?

A critical-T value is a “cut-off point” on the t distribution. A t-distribution is a probability distribution that is used to calculate population parameters when… Read More

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R-Statistics

R Language

Python OpenCV – Bicubic Interpolation for Resizing Image

Image resizing is a crucial concept that wishes to augment or reduce the number of pixels in a picture. Applications of image resizing can occur… Read More

Image-Processing

OpenCV

Picked

Python-OpenCV

Python

Morgan Stanley Internship Interview Experience | On-Campus 2020

Morgan Stanley | Summer Analyst Internship | India | On-Campus 2020 Status: Prefinal year student of Indian Institute of Technology Kanpur. Date: August 2020 It… Read More

Morgan Stanley

On-Campus

Experiences

Internship

Interview Experiences