Questions Format in a Machine Coding Round?
Learn what a Machine Coding Round question looks like, how requirements are presented, and what to expect. Explore real Machine Coding questions from Flipkart, Uber, Swiggy, Udaan, Ola, and CRED, including Parking Lot, Elevator, Splitwise, and more.
Wondering what the questions format looks like in a Machine Coding Round?
In most Machine Coding Interviews, the interviewer shares the problem statement and requirements through a Google Doc or a similar shared document. You are then expected to understand the requirements, clarify any doubts, and implement the solution within the given time.
The doc is the spec — read it like a PRD, list entities and responsibilities first, then clarify edge cases before coding.
Common Machine Coding Questions
Some commonly asked problems include:
- Parking Lot
- Elevator System
- Movie Booking System
- Splitwise
- Vending Machine
- In-Memory Database
- Library Management System
- Rate Limiter
- Notification System
- Cab Booking System
- Chess Game
- Tic-Tac-Toe
- Shopping Cart
- Logger
- File System
How does a Machine Coding question look?
A Machine Coding problem typically evolves through three parts: make it work, make it extensible, and discuss how it could evolve.
Part 1 — Basic Requirements
The first part covers the core requirements of the system. The goal is a working solution with clean, well-structured code that supports basic CRUD operations while identifying the right entities and responsibilities.
Part 2 — Bonus Requirements
Once the basic functionality is complete, the second part can add new bonus requirements. The interviewer now evaluates whether your existing design can handle these changes without major code changes or duplication.
This is where OOP, SOLID principles, abstraction, and design patterns become important. Handle concurrency and race conditions correctly.
Part 3 — Future Extensions
Finally, the third part may discuss how the system could evolve in the future. You may not need to implement all of these features — the interviewer wants to understand whether your design is flexible enough to support future requirements.
Level varies with experience
Part 1 → Make it work.
Part 2 → Make it extensible.
Part 3 → Think about how it can evolve.
Regardless of level, the most important part is to cover the basic requirements well — with extensible, clean code and the right design. That is what makes a Machine Coding Round different from a traditional coding or DSA interview.