Name: AlgoArena
Author: AlgoArena

Question 1

What is AlgoArena?

Accepted Answer

AlgoArena is the all-in-one platform where developers learn, compete, prove, and build. It features live CS classrooms, real-time 1v1 coding battles, AI-native online assessments for companies and candidates, and an Agentic Builder for shipping real software. 16 languages, 10,000+ problems, free to start.

Question 2

Is AlgoArena free to use?

Accepted Answer

Yes! AlgoArena offers a free tier with access to practice problems, battles, and core features. Optional premium upgrades are available for power users who want advanced features.

Question 3

What programming languages does AlgoArena support?

Accepted Answer

AlgoArena supports 16 programming languages including Python, JavaScript, TypeScript, Java, C++, Go, Rust, and more. All languages use consistent input-based judging.

Question 4

Can I use AlgoArena in my classroom?

Accepted Answer

Yes! Classroom mode lets educators run Kahoot-style live CS sessions with multiple choice, true/false, puzzles, and full coding problems. Track student participation and progress in real time.

Question 5

What are AI-native assessments?

Accepted Answer

AI-native Online Assessments built for the modern era. Companies administer assessments that track how candidates reason, debug, and collaborate with AI. Candidates practice in the same environment they'll be tested in. Join the waitlist to be notified when it launches.

Question 6

How does the AlgoArena ranking system work?

Accepted Answer

AlgoArena uses an ELO-based ranking system similar to chess. Your rating changes based on battle outcomes and opponent strength. Win against stronger opponents to gain more points!