All Hard Articles

RADIUS Protocol

If a single administrator wants to access 100 routers and the local database of the device is used for username and password (authentication) then the… Read More

Computer Networks

Goldman Sachs Interview Experience | Set 42 (Less than 1 year experienced)

Round 1(HackerRank) 1: Related to find the total number of common digits in some range of numbers. 2: Knapsack problem variation, and expected output was… Read More

Experienced

Experiences

Interview Experiences

LinkedHashMap containsKey() Method in Java with Examples

The java.util.LinkedHashMap.containsKey() method is used to check whether a particular key is being mapped into the LinkedHashMap or not. It takes the key element as… Read More

Java - util package

Java-Collections

Java-LinkedHashMap

Java

acosh() function in C++ STL

The acosh() is an inbuilt function in C++ STL that returns the inverse hyperbolic cosine of an angle given in radians. The function belongs to… Read More

CPP-Functions

cpp-math

STL

C++

Project Idea | MySlam

Project Title: MySlam Introduction: MySlam is a digital slambook. It is a way to know more about people like what they like, what they dislike,… Read More

ProGeek 2.0

Project

Goldman Sachs Interview Experience | Set 41

Round 1: Hackerrank Round 1: Find the total number of common digits in some range of numbers. 2: Knapsack problem variation, and expected output was… Read More

Experiences

Interview Experiences

Draw a rectangular shape and extract objects using Python’s OpenCV

OpenCV is an open-source computer vision and machine learning software library. Various image processing operations such as manipulating images and applying tons of filters can… Read More

Computer Subject

Python

Introduction to Stemming

Stemming is a method in text processing that eliminates prefixes and suffixes from words, transforming them into their fundamental or root form, The main objective… Read More

Computer Subject

Machine Learning

NLP

PriorityQueue toArray() Method in Java

The java.util.PriorityQueue.toArray() method in Java is used to form an array of the same elements as that of the Priority Queue. Basically, it copies all… Read More

Java - util package

Java-Collections

Java-Functions

java-priority-queue

Java

Cuts and Network Flow

The backbone analysis of any network is broadly accomplished by using Graph Theory and its Algorithms. The performance constraints are Reliability, Delay/Throughput and the goal… Read More

Algorithms

Articles

Computer Networks

Computer Networks Quiz

Computer Subject

CS - Placements

DSA

Graph

Misc

Hashtables Chaining with Doubly Linked Lists

Prerequisite – Hashing Introduction, Hashtable using Singly Linked List & Implementing our Own Hash Table with Separate Chaining in Java Implementing hash table using Chaining… Read More

Data Structures

Advanced Data Structure

DSA

Hash

Linked List

Searching

Largest connected component on a grid

Given a grid with different colors in a different cell, each color represented by a different number. The task is to find out the largest… Read More

C++ Programs

Competitive Programming

DSA

Graph

Matrix

Misc

Pattern Searching

System.lineSeparator() method in Java With Examples

The lineSeparator() is a built-in method in Java which returns the system-dependent line separator string. It always returns the same value – the initial value… Read More

Java-Functions

Java-I/O

Java-lang package

Java

Character.digit() in Java with examples

The java.lang.Character.digit() is an inbuilt method in java which returns the numeric value of the character ch in the specified radix. It returns -1 if… Read More

Java-Character

Java-Functions

Java-lang package

Java

Project Idea | Songs Recommendation System in Android

Project Title: Songs Recommendation System in Android Introduction: We all know that in today’s era internet is expanding very much and as a result, the… Read More

ProGeek 2.0

Project

Developing a Linux based shell

What is a shell? It’s the visible part of an operating system that users interact with, users interact with the operating system by providing commands… Read More

Compiler Design

Computer Subject

VMWare Interview Experience | Set 13 (Staff Engineer – UI)

I applied through referral. I got call within a week. Total 7 rounds. First round was telephonic, asked some basic javascript questions followed by below… Read More

Experiences

Interview Experiences

Design a stack to retrieve original elements and return the minimum element in O(1) time and O(1) space

Our task is to design a Data Structure SpecialStack that supports all the stack operations like push(), pop(), isEmpty(), isFull() and an additional operation getMin()… Read More

DSA

Java

Mathematical

Stack

RedBus Interview Experience | Set 2 (Full stack role)

Round 1: Asked about myself and my current company. what kind of work i did in my current company on a day to day basis. Then… Read More

Experiences

Interview Experiences

Discrete Mathematics | Types of Recurrence Relations – Set 2

Prerequisite – Solving Recurrences, Different types of recurrence relations and their solutions, Practice Set for Recurrence Relations The sequence which is defined by indicating a… Read More

Discrete Mathematics

Engineering Mathematics

GATE CS

Technical Scripter