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Five for week 15
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December 19, 2011 at 8:00 AM (UTC)

Five for week 15

Upsolve
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Dec 19, 2011
Ended 13 years ago
Unknown
5.5
days
5
Problems
Start time
December 19, 2011 at 8:00 AM (UTC)
End time
December 24, 2011 at 8:00 PM (UTC)
Format
IOI, 5 problems, 5.5 days
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