𝐒𝐘𝐒𝐓𝐄𝐌 𝐃𝐄𝐒𝐈𝐆𝐍 𝐀𝐋𝐆𝐎𝐑𝐈𝐓𝐇𝐌𝐒 𝐎𝐍𝐄 𝐒𝐇𝐎𝐔𝐋𝐃 𝐊𝐍𝐎𝐖 𝟭)𝗕𝗟𝗢𝗢𝗠 𝗙𝗜𝗟𝗧𝗘𝗥 It is a data structure designed to tell you, rapidly and memory-efficiently, whether an element is present in a set. 𝙐𝙨𝙚 𝙘𝙖𝙨𝙚: Build a Web crawler 𝟮)𝗙𝗥𝗨𝗚𝗔𝗟 𝗦𝗧𝗥𝗘𝗔𝗠𝗜𝗡𝗚 It uses only one unit of memory per group to compute a quantile for each…

REST API design always has questions like what should go in the path param, query param, resources, sub-resources. What about the versioning, how to do auth , which header to use when, what HTTP method (GET, POST, PUT, PATCH, DELETE)to use when, what should be the response body, what should…

Design Twitter — Microservices Architecture of Twitter Service Twitter is an online social networking service where users post and read short messages called “tweets”. Most candidates try to design Twitter as a monolithic service in System Design Interview. If you check several existing online resources, they also try to design Twitter as a monolithic service. However, in our…

If you need shortcut to leetcode which covers all concepts are ? let me list all these patterns: Sliding Window Two Pointers Fast & Slow Pointers Merge Intervals Cyclic Sort In-place Reversal of a LinkedList Tree Breadth-First Search Tree Depth First Search Two Heaps Subsets Modified Binary Search Bitwise XOR …

Blockchains are incredibly popular nowadays. But what is a blockchain? How does a blockchain work, what problems do blockchains solve, and how can blockchains be used? In this article, we explain the blockchain architecture as well as types and components of blockchains. Main advantages of blockchain technology Blockchain technology has been widely adopted for the…

I am not specific to any country but I see that there are similar policies followed everywhere. I am a salaried class professional and I pay around 33.5% taxes on my total income. The main prodigy is that even after paying this 33.5% tax, the money that is left with…

LB(Load Balancer)- It helps to spread the traffic across a cluster of servers to improve responsiveness and availability of applications, websites or databases. LB also keeps track of the status of all the resources while distributing requests. If a server is not available to take new requests or is not…

SOLID Principle is just acronym of five principles. 1 ) S — Single Responsibility Principle 2 ) O — Open/Closed Principle 3 ) L — Liskov’s Substitution Principle 4 ) I — Interface Segregation Principle 5 ) D — Dependency Inversion Principle S — Single Responsibility Principle (SRP) A class…

What is a Microservice? What is a microservice? Should you be using microservices? How are microservices related to containers and Kubernetes? If these things keep coming up in your day-to-day and you need an overview in 10 minutes, this blog post is for you. Fundamentally, a microservice is just a computer program which runs…