Do you know any site where one can practice with problems from the Balkan Olympiad in Informatics? I already know http://www.spoj.com/OI/, which has a few BOI problems.
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http://people.csail.mit.edu/mip/probs.html Here are some problems from BOI and another romanian contests.
He said "Online judge"
Which country hosts olympiad this year?
Turkey, I believe, however this is not the topic in this post :)
Sorry then!!!