Basecamp

January 1, 2013 at 12:01 AM (UTC)

13 to 13 in 2013

Upsolve

Jan 1, 2013

Ended 13 years ago

Unknown

13

hours

13

Problems

Start time: January 1, 2013 at 12:01 AM (UTC)
End time: January 1, 2013 at 1:00 PM (UTC)
Format: IOI, 13 problems, 12.983 hours

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13 to 13 in 2013 - Basecamp