Basecamp

December 31, 2012 at 12:00 PM (UTC)

12 to 12 in 2012

Upsolve

Dec 31, 2012

Ended 13 years ago

Unknown

12

hours

12

Problems

Start time: December 31, 2012 at 12:00 PM (UTC)
End time: January 1, 2013 at 12:01 AM (UTC)
Format: IOI, 12 problems, 12.017 hours

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12 to 12 in 2012 - Basecamp