Aditya Chatterjee's Blog, page 10

Strategy Design Pattern in Software Design [Java]

In the dynamic realm of software development, creating flexible and maintainable code is paramount. The ability to adapt to changing requirements, accommodate diverse functionalities, and simplify code maintenance are perpetual challenges faced by developers. One valuable tool in addressing these challenges is the Strategy Pattern.

Table of contents:

Understanding the Strategy PatternCore ComponentsReal World AnalogyDefine a family of algorithmsImplement concrete strategiesUse composition ...

Game Playing: Adversarial Search

What kind of games we would like to explore?Sequence of movesHas got some defined rulesRules also gives idea about reward for a moveNeed to maximize our reward

The goal of adversarial search is to create an intelligent agent that can make decisions to maximize its chances of winning the game. The agent needs to consider the possible moves of both players and anticipate the outcomes of these moves to make informed decisions.

Table of contents:

Two player GamesSome DefinitionsMini-max alg...

Sell RSU and ESPP in India [with Purpose Code] - Maximize Return

Optimizing the sale of Restricted Stock Units (RSUs) and Employee Stock Purchase Plans (ESPPs) from foreign brokerages demands a strategic and comprehensive approach. This OpenGenus guide, tailored for Indian residents, provides insights and strategies to maximize returns while efficiently managing costs, including GST charges. Additionally, we'll explore the significant advantages of leveraging indexation in the context of RSU and ESPP transactions.

Table of contents:

Unified Strategy: Navigat...

Master Greedy Algorithm with 7 Basic Problems [Solution + Code included]

In this article at OpenGenus, we will discuss the about how to master greedy algorithms by solving 7 basic problems using greedy algorithmic ideas.

TABLE OF CONTENTValid Palindrome2Queue Reconstruction By HeightShortest unSorted Continous SubarrayDota 2 SenateValid Paranthesis StringCan Place Flowerspatching ArrayOther Applications of greedyProblem 1: Valid Palindrome II

Statement : We have been given a string and we have to delete single character from it to make string palindrome.

R...

Queue::emplace in C++ STL

In this article at OpenGenus.org, we will discuss emplace method of Queue container in C++ STL.

Questions regarding emplace that will be answered in this article will be:

What does the emplace function in the Queue class do?What are the benefits of using the emplace function?What is the time complexity of the emplace function?Are there situtations when using emplace has no benefit?What are the practical applications of the emplace function?1. What does the emplace function in the Queue cl...

Vector Databases: Long-term Memory of LLMs

Table of Contents:IntroductionUnderstanding Large Language ModelsChallenges with retaining LTMWorkingEmbeddingsVector IndexingKey TakeawaysIntroduction:

In the rapidly evolving landscape of artificial intelligence, Large Language Models (LLMs) have become the cornerstone of various applications, from natural language processing to content generation. These models, such as GPT-3 and its successors, demonstrate unparalleled language understanding and generation capabilities. However, the...

Virtual Memory in OS

KEY TAKEAWAYSKey Takeaways (Virtual Memory)Understanding virtual memory, demand paging, and swapping techniques is essential for optimizing memory resources and improving overall system performance.Recognizing the impact of thrashing and the role of page replacement algorithms is crucial for preventing memory-related performance bottlenecks in computer systems.Demand paging allows for the efficient utilization of memory resources, making it possible to handle memory-intensive applications ...

Authentication and Authorization in Node.js: A Comprehensive Guide

Table of ContentsIntroductionAuthentication and Authorization
2.1 Project StructurePrerequisitesStep 1 - Create a directory and initialize npmStep 2 - Create files and directoriesStep 3 - Install DependenciesStep 4 - Set Up Express AppStep 5 - Create ModelStep 6 - Implement Authentication LogicStep 7 - Implement Authorization LogicStep 8 - Implement Authorization LogicStep 9 - Public Files Completion, Testing, and ConclusionIntroduction

In the ever-evolving landscape of web develo...

Task Tracking App: A Comprehensive Guide to CRUD Operations with Express.js

In the fast-paced world of web development, an application's ability to perform CRUD operations (Create, Read, Update, Delete) is essential for a robust and user-friendly experience. In this OpenGenus guide, we will enhance our task tracking app by implementing update and delete functionality using Express.js. This expansion will provide users with a more dynamic and interactive task management system.

How to Use the Task Tracking App

Our task tracking app offers a straightforward user interfac...

Build a Timestamp Microservice in JavaScript (Nodejs)

In this code-driven tutorial at OpenGenus, we will build a Timestamp Microservice in JavaScript using the Express.js framework. This microservice accepts a date as a parameter and returns its Unix timestamp and UTC time. We will cover each step in detail, from project setup to error handling.

Introduction: Understanding the Project

Timestamp Microservices are a critical component of modern web and software architecture. They are a subset of microservices that serve a specific purpose related to ...