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Earned on 3 Feb 2012 for liking Problem 15. Find the longest sequence of 1's in a binary seq....
Earned on 14 Mar 2014 for first solving .
Earned on 8 Jan 2013 for submitting the best solution .
Solve all the problems in CUP Challenge problem group.
Earned on 19 Aug 2014 at 13:52 for having 50 or more solvers for Problem 1188. The Answer to Life, the Universe, and Everythi....
Solve all the problems in Cody Challenge problem group.
Solve all the problems in ASEE Challenge problem group.
Create 10 problems.
Solve 500 problems.
Must receive 25 total likes for the problems you created.
Must receive 10 likes for a solution you submitted.
Must receive 50 total likes for the solutions you submitted.
Must receive 10 likes for a problem you created.