December 3, 2012 at 8:00 AM (UTC)
Five for week 12+13 (2012-2013)
Upsolve
Dec 3, 2012
Ended 13 years ago
Unknown
12.5
days
10
Problems
- Start time
- December 3, 2012 at 8:00 AM (UTC)
- End time
- December 15, 2012 at 8:00 PM (UTC)
- Format
- IOI, 10 problems, 12.5 days