Earned on 27 Feb 2013 for solving Problem 2. Make the vector [1 2 3 4 5 6 7 8 9 10].
Earned on 27 Feb 2013 for liking Solution 105522.
Earned on 15 May 2013 at 13:17 for commenting on Solution 209568.
Solve a problem first.
Create a problem.
Earned on 27 Feb 2013 for submitting the best solution Solution 209568.
Solve all the problems in Tiles Challenge problem group.
Must have 50 solvers for a problem you created.
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 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.