Solve all the problems in Cody5:Easy
Awarded to Elmar Zander on 23 Oct 2017
Provide your first answer ever to someone else's question
Awarded to Elmar Zander on 20 Jul 2017
Solve all the problems in Indexing III
Awarded to Elmar Zander on 02 Apr 2017
Solve all the problems in Indexing II
Awarded to Elmar Zander on 29 Mar 2017
Solve all the problems in Indexing I
Awarded to Elmar Zander on 23 Mar 2017
Solve a problem with a best solution
Awarded to Elmar Zander on 23 Mar 2017
Solve all the problems in CUP Challenge
Awarded to Elmar Zander on 22 Mar 2017
Like a problem or solution
Awarded to Elmar Zander on 03 Mar 2017
Comment on a problem or solution
Awarded to Elmar Zander on 03 Mar 2017
Solve a problem for the first time
Awarded to Elmar Zander on 17 Jun 2013
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