The rules for the IOI 2013 competition are now available. Note that these are still tentative until they are approved by the General Assembly at the IOI.
All team leaders, deputy leaders and contestants should read and become familiar with the rules. There are some changes from previous years, highlighted at the start of the document.
Also available is an updated version of the IOI syllabus, which outlines the topics and concepts which may be used in IOI tasks.