The high-speed algorithmic judge built for university hackathons, 3-member squads, sandboxed multi-language evaluation, and verified credentials.
Everything needed to organize collegiate hackathons, practice complex algorithms, and verify developer skills.
Isolated execution with disabled network access, stripped capabilities (--cap-drop ALL), and sub-second verdicts across 20+ languages.
Join codes, live squad roster, and real-time team synchronization built specifically for competitive collegiate hackathons.
Real-time score deltas, podium animations, penalty calculations, and scoreboard freeze for suspenseful closing ceremonies.
Direct in-IDE access to Google Search, Stack Overflow, and official language documentation without leaving the workspace.
Multi-tab scratchpad, Vim/Emacs modes, 1-click code formatting, custom multi-testcase manager, and built-in competitive macros (⌥I).
Official IEEE Computer Society credentials with verifiable cryptographic QR codes and 1-click LinkedIn badge sharing.
Join as an individual contestant or create a 3-member hackathon squad with instant join codes. Choose from dynamic programming, graph theory, and mathematical algorithms.
Write in Python, C++, Java, Rust, or JavaScript. Test against sample cases, insert Fast I/O snippets (⌥I), and research documentation inside the platform (⌘B).
Get sub-second sandboxed grading results. Watch your squad rise on the real-time leaderboard and receive cryptographically verifiable IEEE CS digital badges.
Join thousands of developers solving problems, climbing leaderboards, and earning verified certifications.