RA

Solve all the problems in CUP Challenge

Awarded to RA on 14 Jun 2014

Obtain 50 solvers for a problem you have created

Awarded to RA on 25 Apr 2015

Like a problem or solution

Awarded to RA on 14 Jun 2014

Comment on a problem or solution

Awarded to RA on 14 Jun 2014

Solve a problem for the first time

Awarded to RA on 07 Jun 2014

Be the first to solve a problem

Awarded to RA on 16 Jun 2014

Create a problem

Awarded to RA on 08 Jun 2014