Facebook Hacker Cup 2013 从这周末开始，
Qualification Round 持续三天，
有兴趣的一起玩玩吧:)
The Qualification Round starts on January 25, 2013 at 4:00 PM PT and will
last 72 hours.
Online Round 1 will last 24 hours and start February 2, 2013 at 10:00 AM PT.
Online Round 2 will begin on February 9, 2013 at 1:00 PM PT and will last 3
hours.
Online Round 3 will begin on February 16, 2013 at 1:00 PM PT and will last 3
hours.
The Onsite Final Round will be on on March 22, 2013 at the Facebook offices
in Menlo Park, California, USA