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Arena Rules & Consent

The Problem of the Day is a ranked challenge with strict proctoring rules. Please read and acknowledge the rules before entering the arena. Your solve timer will start exactly when you click "I Agree & Enter".

Rules

How the Arena works · Rules

Scoring, fair play, and what gets you disqualified.

  1. 1One Problem of the Day. Read the statement on the left and solve it in the browser editor on the right.
  2. 2Points are awarded by speed: the faster your first Accepted submission, the higher you rank on the daily board (1000 for 1st down to 100 for 10th and beyond).
  3. 3The on-screen timer is only indicative — your official solve time is recorded on the server the moment your submission is Accepted.
  4. 4Only your first Accepted submission counts. Once you've solved today's problem it's locked and hidden — you can review it in the archive after the next problem goes live.
  5. 5The daily board is final at IST midnight: the next problem takes over and today's standings freeze for good.
  6. 6Past problems stay open for practice. An accepted practice solve earns a flat 100 points toward your all-time total — but never a speed bounty.
  7. 7Copy, paste, right-click, and automated/simulated typing extensions are disabled inside the arena. You may only use copy-paste within the browser editor itself — pasting code from outside or using auto-typer tools is blocked, and each attempt counts as an integrity flag. Switching tabs or windows and taking screen captures during a live solve are also recorded for review.
  8. 8Accumulating more than 5 integrity flags (blocked paste/simulated typing attempts, tab/window switches, screen captures) removes you from that day's top 10 — an accepted solve then earns only the 100-point base.
  9. 9The problem statement can't be selected or copied, it's watermarked with your identity, and it blurs when you leave the tab — leaked problems are traceable back to you.
  10. 10Write your own code. Plagiarism, sharing solutions, or automating submissions leads to disqualification and forfeiting the bounty.
  11. 11Don't probe or exploit the judge, and don't attempt to extract the hidden test cases.