These are the documents that you can (and should) read before the contest. They are updated throughout the year and do not contain any problem-specific information.

Contestants and site directors will want to know the

• Programming Environment Requirements.

Contestants, coaches, and judges must be intimately familiar with the

• Error Messages, given in response to an incorrect submission, and the
• Notes to Teams, which cover I/O and formatting conventions, program structure, and other essential information.

All judges must be familiar with the

• Notes to Judges, and the
• Notes to Sites, which also has information about judging, including the election of a Head Judge and two Witnesses, and

Judges at sites that are not using PC^2 must be familiar with

• Using the Judging Utilities,

and the following PDF forms:

• Accepted Solution Receipts
• Clarification Request
• Judging Log Sheet, and a filled-in sample
• Judging Request
• Site Log Sheet