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Earned on 31 Dec 2012 for creating Problem 1158. Sum the elements in either diagonal of a squar....
Earned on 12 Feb 2015 for first solving Problem 969. Genome Sequence 003: DNA Sequence with random p....
Earned on 1 May 2015 for having 50 or more solvers for Problem 1158. Sum the elements in either diagonal of a squar....
Create 10 problems.
Solve 500 problems.
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.
Solve all the problems in Magic Numbers problem group.
Solve all the problems in Modeling and Simulation Challenge problem group.