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Earned on 20 Dec 2013 for liking Problem 61. Find state names that end with the letter A.
Earned on 20 Dec 2013 for first solving .
Earned on 29 Dec 2013 for submitting the best solution .
Must have 50 solvers for a problem you created.
Earned on 15 Jan 2014 for creating 10 problems.
Earned on 9 Jan 2014 for solving 500 problems.
Solve all the problems in Modeling and Simulation Challenge problem group.
Solve all the problems in Magic Numbers problem group.
Must receive 25 total likes for the problems you created.
Must receive 50 total likes for the solutions you submitted.
Must receive 10 likes for a solution you submitted.
Must receive 10 likes for a problem you created.