Puneet Verma Modulo % Example to show Modulus operator: Refer Extract Last Digit(s) of a Number Digit separation Reverse a number Decimal to binary Using Bitwise Refer Binary to Decimal Using bitwise Array Reverse an Array Array Rotation Method 1 : Using Mod (%) Consider it as circular array and use the property of mod Note: Point … Read more
Python’s asyncio is a powerful library for writing concurrent code using the async/await syntax. It’s great for I/O-bound operations like network calls, database access, or file I/O—basically anything where your program waits on something. What is asyncio? asyncio lets you write concurrent code in Python using the async/await syntax. This is perfect when you want … Read more
The ELK Stack—comprising Elasticsearch, Logstash, and Kibana—is one of the most popular log management and data analytics stacks today. Developed and maintained by Elastic.co, it enables organizations to collect, process, analyze, and visualize data from multiple sources in real-time. In recent years, the ELK Stack has evolved into the Elastic Stack, which also includes Beats—lightweight … Read more
How Duolingo Saved Millions in AWS Cloud Costs How Canva Saved Millions in AWS S3 Costs Resources
Amazon Web Services (AWS) has revolutionised the way developers build, deploy, and scale applications. Whether you’re a startup building your MVP or an enterprise running mission-critical systems, AWS offers powerful services to meet every need. Among its vast suite of cloud offerings, Amazon EC2, AWS Lambda, Amazon S3, and Amazon DynamoDB stand out as foundational … Read more
Low-Level Design (LLD) plays a critical role in software engineering. It transforms high-level requirements into detailed class structures, object interactions, and method signatures. Whether you’re preparing for system design interviews or working on real-world applications, understanding how to approach LLD effectively can set you apart. Topics to Master To tackle LLD problems confidently, make sure … Read more
Designing a Parking Lot System involves the use of various design patterns to structure the system in a way that is flexible, scalable, and easy to maintain. In this case, the Parking Lot System is built to manage parking spots, vehicles, parking tickets, and payment modes. Requirment 1 Solution Identify key objects/classes in the system. … Read more
Class Diagram is widely used in object-oriented programming to visualize and design the structure of software systems before writing any code. What is a Class Diagram? A Class Diagram is a type of static structure diagram in the Unified Modeling Language (UML) that describes the structure of a system by showing its classes, attributes, methods, … Read more
Exception Bad Practice Recommended (Good Practice) Way 1 Way 2 Catching a too general Exception is generally considered a bad practice because: Idea Doc String format