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Earned on 2 Jul 2013 for first solving .
Earned on 2 Jul 2013 for creating Problem 1693. Calculate distance travelled when given radius....
Earned on 11 Jul 2013 for submitting the best solution .
Solve all the problems in Tiles Challenge problem group.
Solve all the problems in Cody Challenge problem group.
Solve all the problems in ASEE Challenge problem group.
Earned on 22 Jul 2013 for creating 10 problems.
Solve 500 problems.
Must receive 25 total likes for the problems you created.
Must receive 10 likes for a solution you submitted.
Must receive 50 total likes for the solutions you submitted.
Must receive 10 likes for a problem you created.