Receive 25 likes on a problem you have created
Awarded to Tomasz on 12 Jul 2022
Obtain 50 solvers for a problem you have created
Awarded to Tomasz on 16 May 2021
Publish your first review
Awarded to Tomasz on 09 Oct 2019
Solve all the problems in CUP Challenge
Awarded to Tomasz on 22 Jul 2015
Solve all the problems in ASEE Challenge
Awarded to Tomasz on 08 Jan 2013
Solve all the problems in Tiles Challenge
Awarded to Tomasz on 04 Jan 2013
Solve a problem with a best solution
Awarded to Tomasz on 31 Jan 2012
Create a problem
Awarded to Tomasz on 31 Jan 2012
Comment on a problem or solution
Awarded to Tomasz on 30 Jan 2012
Be the first to solve a problem
Awarded to Tomasz on 30 Jan 2012
Like a problem or solution
Awarded to Tomasz on 26 Jan 2012
Solve a problem for the first time
Awarded to Tomasz on 26 Jan 2012
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