Obtain 50 solvers for a problem you have created
Awarded to Andrea on 30 Dec 2020
Solve all the problems in CUP Challenge
Awarded to Andrea on 28 Jan 2015
Like a problem or solution
Awarded to Andrea on 28 Jan 2015
Create a problem
Awarded to Andrea on 28 Jan 2015
Be the first to solve a problem
Awarded to Andrea on 28 Jan 2015
Solve a problem for the first time
Awarded to Andrea on 13 Jan 2015
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