Earned on 21 Jan 2013 for solving Problem 2. Make the vector [1 2 3 4 5 6 7 8 9 10].
Earned on 2 Sep 2013 for commenting on Solution 105740.
Earned on 30 Aug 2013 for liking Problem 21. Return the 3n+1 sequence for n.
Earned on 6 Sep 2013 for creating Problem 1860. Remove TeX from string.
Earned on 6 Sep 2013 for first solving Problem 1860. Remove TeX from string.
Earned on 31 Dec 2014 for solving all the problems in CUP Challenge.
Solve a problem with a best solution.
Earned on 20 Oct 2016 at 17:03 for having 50 or more solvers for Problem 1925. Smith numbers.
Earned on 12 Sep 2013 for solving all the problems in Tiles Challenge.
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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