Earned on 25 Jan 2012 for solving Problem 1. Times 2 - START HERE.
Earned on 7 Mar 2012 for liking Solution 57960.
Earned on 26 Jan 2012 for commenting on Solution 1828.
Create a problem.
Earned on 21 Mar 2013 for first solving Problem 477. speed vs size.
Solve all the problems in CUP Challenge problem group.
Earned on 9 Mar 2012 for submitting the best solution Solution 58781.
Must have 50 solvers for a problem you created.
Earned on 5 Apr 2012 for solving all the problems in Tiles Challenge.
Solve all the problems in ASEE Challenge problem group.
Earned on 18 Jun 2013 for solving all the problems in Cody Challenge.
Create 10 problems.
Earned on 13 Jun 2012 for solving 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.
Solve all the problems in Indexing I problem group.
Must receive 10 likes for a solution you submitted.
Must receive 10 likes for a problem you created.
Solve all the problems in Indexing II problem group.
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