Congratulations! You qualified to advance in the Facebook Hacker Cup Qualification Round and are eligible to compete in Online Round 1.
You passed the following problems: Double Squares
Online Round 1 consists of 3 sub-rounds, each lasting 3 hours. Competitors who advance to Online Round 1 can participate in any of the 3 sub-rounds, until they qualify for Online Round 2.

• The first sub-round will start January 15, 2011 at 15:00 UTC (7:00 AM PST) and end January 15, 2011 at 18:00 UTC (10:00 AM PST) .
• The second sub-round will start January 15, 2011 at 21:00 UTC (1:00 PM PST) and end January 16, 2011 at 0:00 UTC (January 15, 2011 - 4:00 PM PST).
• The third sub-round will start January 16, 2011 at 21:00 UTC (1:00 PM PST) and end January 17, 2011 at 0:00 UTC (January 16, 2011 - 4:00 PM PST).

During the sub-rounds, competitors must log in to the Competition website and will be presented with a problem set. Of those participating in Online Round 1, the top-scoring 1000 competitors from each of the 3 sub-rounds will advance to Online Round 2. Competitors who advance to Online Round 2 from a sub-round may not participate in later sub-rounds. Competitors who fail to advance from a sub-round may attempt to advance to Online Round 2 in later sub-rounds.
Note that for Online Round 1 you will be required to submit your source code for any problem that you solve.
Regards,
The Hacker Cup Team