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Earned on 30 Jul 2012 for solving Problem 1. Times 2 - START HERE.
Earned on 31 Jul 2012 for liking Solution 117170.
Earned on 17 Oct 2012 for commenting on Problem 621. Cryptomath: Addition.
Create a problem.
Earned on 4 Dec 2012 for first solving Problem 1090. Create a random logical vector of N elements o....
Solve all the problems in CUP Challenge problem group.
Solve a problem with a best solution.
Must have 50 solvers for a problem you created.
Earned on 22 Oct 2012 for solving all the problems in Tiles Challenge.
Solve all the problems in ASEE Challenge problem group.
Earned on 14 Mar 2013 for solving all the problems in Cody Challenge.
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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