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Earned on 11 Jul 2012 for liking Problem 738. Criss_Cross_010 : Unique elements, Square array....
Earned on 22 Aug 2013 for creating 10 problems.
Earned on 19 Mar 2013 for solving 500 problems.
Must receive 25 total likes for the problems you created.
Earned on 20 Jan 2013 for receiving 50 total likes for solutions.
Must receive 10 likes for a solution you submitted.
Must receive 10 likes for a problem you created.
Solve all the problems in Magic Numbers problem group.