- Study the Competition Rules.
Study the tasks and solutions from previous IOI competitions.
Read the task descriptions carefully. The official versions of the descriptions are
written in English. They will be translated to other languages by delegation
leaders/deputies. If there are any differences between these versions - the English
version is binding.
Take notice that less efficient programs, or the programs that do not always give a
proper answer can give you some points by solving some simplier cases.
If the task description is not precise and you have any doubts about it, you can submit
a clarification request. You can express it in your native language and the question will
be translated into English by your delegation leader/deputy. The answer will be given in
English and it will be one of the following: 'Yes', 'No' or 'No comment'. Therefore you
should express your question in such a way, that an answer 'Yes'/'No' can be given.
Remember: Clarification requests can only be submitted during the first hour of the
Input and output data:
The input data is always exactly as specified in the task description. Make sure your
program follows the output description precisely. If it does not, you may gain no points
for your program (even if the algorithm is correct).
Computers may fail, so you should frequently make copies of your files.