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Low level Design / Machine Coding Question Collections




What is Machine Coding Round ?


Machine Coding Round has become very popular interview round in most Product and startup companies like Flipkart, Cleartrip, navi and Udaan,the way the round is structured is the candidate will be provided with a Problem statement and the minimum set of features which needs to implemented within the 90 min window period, we as a candidate need to identity the data models, the service interfaces which will be consumed by the clients and other set of functions and classes, we should be able to present the same to the panel with are design choices / design patterns being made / used and the complete working code.



What is the purpose behind this LLD repo ?

During my recent Preparation, found out that there was no single resources where we get a collections of all the questions and the corresponding Answers, so currently updating the repo with all the materials I found out from the web and the Questions which has been asked during my interview. feel free to contribute any questions you have got during your recent interview.There other useful YT channel and Git repo which are attached in the resources section.



What is target Audience, do all companies ask ?

If you are currently targeting/looking out for any SDE - I,II opportunities. It totally depends on the company you interviewing with, you can check with the HR if they evaluate via machine coding round, but certain companies do ask a object oriented design round where they focus only on one particular feature and DB design as well, so its good get practiced with few problems beforehand.



Below are the list of LLD problem which are asked during my machine coding rounds from tech companies and the resources I collected.


Note : page is under construction, you can click on the individual packages to view all the questions and solutions.

Low Level Design Question

Question Link to PDF / Drive

Company Asked

Credits to author

Cricket Match Dashboard Leetcode Udaan Assignment
Event Calendar PDF link Flipkart LLD Question
FoodKart or food ordering System Doc link Flipkart LLD Question
Stock Exchange Problem Link Navi LLD Question
PropertyHunt or property Listing site Question image ClearTrip LLD Question
ledger company Question Link Navi LLD Question Github code
Leetcode Like platform LLD PDF link Flipkart LLD Question Github code



Frequently asked Problems


Low Level Design Question Question Link to PDF / Drive Company Asked Credits to author
Ride Sharing like App Problem Link Frequently asked in all companies
Design Lift/Elevator Solution-1 Frequently asked in all companies
Design 2048 Game Solution-1 Frequently asked in all companies
Design Splitwise Solution-1 Frequently asked in all companies
Design AWS Lambda Solution-1 Frequently asked in all companies
Design Game Engine Solution-1 Frequently asked in all companies
Design Newsletter Service Solution-1 Frequently asked in all companies
Design Gmail Solution-1 Frequently asked in all companies
Design Whatsapp Solution-1 Frequently asked in all companies
Design Event Calender Solution-1 Frequently asked in all companies
Design Tinder Solution-1 Frequently asked in all companies
Design Zoom Solution-1 Frequently asked in all companies
Design Google Doc Solution-1 Frequently asked in all companies
Design Mentorship Platform Solution-1 Frequently asked in all companies
Design CryptoCurrency Exchange Solution-1 Frequently asked in all companies
Design Food Delivery App Solution-1 Frequently asked in all companies
Design Codepair Platform Solution-1 Frequently asked in all companies
Design Chat System Solution-1 Frequently asked in all companies
Design Dropbox Solution-1 Frequently asked in all companies
Design Music Recognition System Solution-1 Frequently asked in all companies
Design Spotify Solution-1 Frequently asked in all companies
Design Bittorrent Solution-1 Frequently asked in all companies
Design Distributed Search Solution-1 Frequently asked in all companies
Design Google Maps Solution-1 Frequently asked in all companies
Design Twitter/X Solution-1 Frequently asked in all companies
Design Blockchain Solution-1 Frequently asked in all companies
Design Video Streaming Solution-1 Frequently asked in all companies
Design Spotify Solution-1 Frequently asked in all companies
Design Bittorrent Solution-1 Frequently asked in all companies


Contribute


Contributions welcome!

If you found this resource helpful, give it a 🌟 otherwise contribute to it and give it a ⭐️.