Obtain 50 solvers for a problem you have created
Awarded to Jose Fernandez on 19 Dec 2020
Solve all the problems in CUP Challenge
Awarded to Jose Fernandez on 28 May 2015
Comment on a problem or solution
Awarded to Jose Fernandez on 28 May 2015
Create a problem
Awarded to Jose Fernandez on 27 May 2015
Solve a problem for the first time
Awarded to Jose Fernandez on 26 May 2015
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