A full 90-minute machine coding round — validated with hidden test cases and evaluated for architectural quality.
Free to try. No credit card required.

How It Works

01
Understand the problem statement, requirements, and constraints — just like a real machine coding round.

02
Explain your high-level design approach. Get AI feedback on your choices and understand the criticality of changes before moving forward.

03
Write your code and validate against visible test cases. Build incrementally, just like you would in a real interview.

04
Your implementation runs against edge cases and evolving requirements — not just the sample scenarios you saw.

05
Handle new constraints mid-session. Extend your implementation under pressure as requirements evolve.

06
Receive a structured report with correctness scores, architectural quality review, and actionable improvement areas.
What Sets This Apart
Edge cases and evolving requirements, not sample I/O.
AI evaluates your design decisions, modularity, and extensibility.
New constraints mid-session, just like real rounds.
Full 90-minute round with real time pressure.