Design an ATM

Build the core of the software inside a cash machine. Someone puts in a card, enters a PIN, and takes out, pays in or moves money, and the machine pays out real notes, which can run out.

How the round runs

Medium · 5 stages · 5 questions · 60 min

~6 min

Requirements Gathering

lists

~3 min

Identifying Core Entities

cards

~14 min

Designing Classes & Relationships

diagram

~28 min

Code Implementation

code

~9 min

Deep Dives

code

Set up your round

Level

Interviewer

Duration

Junior · Standard · 60 min