Earned on 2 Nov 2012 for solving Problem 2. Make the vector [1 2 3 4 5 6 7 8 9 10].
Earned on 8 Nov 2012 for commenting on Solution 7353.
Earned on 4 Nov 2012 for liking Solution 156861.
Earned on 25 Nov 2012 for creating Problem 1058. Subtract two positive numbers.
Earned on 23 Feb 2016 for first solving Problem 1087. Magic is simple (for beginners).
Solve all the problems in CUP Challenge problem group.
Solve a problem with a best solution.
Earned on 25 Aug 2016 for having 50 or more solvers for Problem 1058. Subtract two positive numbers.
Solve all the problems in Tiles Challenge problem group.
Solve all the problems in ASEE Challenge problem group.
Solve all the problems in Cody Challenge problem group.
Create 10 problems.
Solve 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.
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