Facebook Hacker Cup 2011 Qualification Rounds Problems

Facebook Hacker Cup 2011 Qualification Rounds Problems

Competitors can log in to the competition website and attempt to solve the 3 problems anytime during the 72-hour period of the Qualification Round.

So, it will be a competition website is setup somewhere...
There will be 3 (three) question given.
Time available to solve those three question is just 72-hour. Shopee photos :