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Earned on 6 Jun 2012 for solving Problem 1. Times 2 - START HERE.
Earned on 24 Oct 2012 for liking Solution 153509.
Earned on 24 Nov 2012 for commenting on Solution 147112.
Earned on 24 Nov 2012 for creating Problem 1053. Create a Multiplication table matrix....
Solve a problem first.
Solve all the problems in CUP Challenge problem group.
Solve a problem with a best solution.
Earned on 24 Jan 2016 for having 50 or more solvers for Problem 1054. What's Your BMI?.
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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