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Earned on 28 Dec 2012 for first solving Problem 1146. Calculate Alcohol By Volume with Original and ....
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Solve all the problems in CUP Challenge problem group.
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Solve all the problems in Cody Challenge problem group.
Solve all the problems in ASEE Challenge problem group.
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Must receive 10 likes for a solution you submitted.
Must receive 10 likes for a problem you created.