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Five for week 21
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January 30, 2012 at 8:00 AM (UTC)

Five for week 21

Upsolve
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Jan 30, 2012
Ended 14 years ago
Unknown
5.6
days
5
Problems
Start time
January 30, 2012 at 8:00 AM (UTC)
End time
February 4, 2012 at 10:00 PM (UTC)
Format
IOI, 5 problems, 5.583 days
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