Earned on 4 Apr 2012 for solving Problem 1. Times 2 - START HERE.
Earned on 23 May 2012 for commenting on Problem 710. Replace Vector Elements.
Earned on 6 Jun 2012 for liking Problem 748. Wrapping the Tower of Pisa.
Earned on 22 Apr 2012 for creating Problem 611. surrounded matrix.
Earned on 2 Jul 2014 for first solving Problem 615. Nilpotent matrix.
Earned on 15 Jan 2014 for solving all the problems in CUP Challenge.
Earned on 17 May 2012 for submitting the best solution Solution 89848.
Earned on 21 Sep 2016 at 16:15 for having 50 or more solvers for Problem 611. surrounded matrix.
Earned on 3 Sep 2013 for solving all the problems in Tiles Challenge.
Earned on 19 Sep 2013 for solving all the problems in ASEE Challenge.
Earned on 14 Mar 2013 for solving all the problems in Cody Challenge.
Earned on 10 Sep 2014 for creating 10 problems.
Earned on 4 Sep 2013 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.
Must receive 10 likes for a solution you submitted.
Must receive 10 likes for a problem you created.
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