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Earned on 17 Dec 2012 for creating Problem 1124. String permutations on phone keyboard.
Earned on 2 May 2014 for first solving .
Earned on 11 Jul 2013 for submitting the best solution .
Must have 50 solvers for a problem you created.
Earned on 8 Dec 2013 for creating 10 problems.
Earned on 23 Apr 2013 for solving 500 problems.
Must receive 10 likes for a solution you submitted.
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 problem you created.