Obtain 50 solvers for a problem you have created
Awarded to Jack Knoll on 09 Aug 2021
Solve all the problems in CUP Challenge
Awarded to Jack Knoll on 13 Apr 2017
Be the first to solve a problem
Awarded to Jack Knoll on 11 Apr 2017
Create a problem
Awarded to Jack Knoll on 11 Apr 2017
Comment on a problem or solution
Awarded to Jack Knoll on 06 Apr 2017
Like a problem or solution
Awarded to Jack Knoll on 06 Apr 2017
Solve a problem for the first time
Awarded to Jack Knoll on 31 Mar 2017
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