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9 Round Spiral. Round 0. Step 9.
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May 10, 2013 at 6:00 AM (UTC)
9 Round Spiral. Round 0. Step 9.
Upsolve
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May 10, 2013
Ended 12 years ago
Unknown
24
hours
11
Problems
Start time
May 10, 2013 at 6:00 AM (UTC)
End time
May 11, 2013 at 6:00 AM (UTC)
Format
IOI, 11 problems, 24 hours
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