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Earned on 29 Apr 2012 for commenting on Problem 73. Replace NaNs with the number that appears to its....
Earned on 27 Apr 2012 for first solving .
Earned on 29 Apr 2012 for submitting the best solution .
Solve all the problems in ASEE Challenge problem group.
Earned on 11 May 2012 for creating 10 problems.
Earned on 10 Jul 2012 for solving 500 problems.
Earned on 6 Feb 2013 for receiving 25 total likes for the created problems.
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.