Competition Rules
General Rules
- Use of Large Language Models (LLM) for problem-solving is not allowed, including ChatGPT, Gemini, or similar tools
- No external assistance is permitted during the competition, including calculators, external help, or pre-prepared code templates
- No communication tools are allowed other than the competition computer
- Participants can report issues during the competition through the designated Discord channel
- In case of tied scores, ranking will be determined by submission time for each problem, ordered from earliest to latest
- The judges' decisions are final
- Any form of cheating will result in removal from the scoreboard and disqualification from receiving certificates, even if prizes were won
TOI-Zero Rules
- Any programming language can be used (C, Python, C++ recommended)
- Competition duration: 3 hours
- Number of problems: 10
- Maximum total score: 1000 points
- No cash prizes
Pre-TOI21 Rules
- Programming languages limited to C or C++ only
- Competition duration: 2 days, 3 hours per day
- Number of problems: 3 per day, total 6 problems
- Maximum total score: 600 points
- Total prize pool: 5,000 THB