li jian's 徽章
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Commenter 12 Dec 2012Comment on a problem or solution
Awarded to li jian on 12 Dec 2012
Solver 23 Oct 2012Solve a problem for the first time
Awarded to li jian on 23 Oct 2012
Creator 12 Dec 2012Create a problem
Awarded to li jian on 12 Dec 2012
Quiz Master 17 Apr 2013Obtain 50 solvers for a problem you have created
Awarded to li jian on 17 Apr 2013
File Exchange 徽章
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First Review 09 Oct 2019Publish your first review
Awarded to li jian on 09 Oct 2019
Cody 徽章
全部Commenter 12 Dec 2012Solver 23 Oct 2012Creator 12 Dec 2012Quiz Master 17 Apr 2013
Comment on a problem or solution
Awarded to li jian on 12 Dec 2012
Solve a problem for the first time
Awarded to li jian on 23 Oct 2012
Create a problem
Awarded to li jian on 12 Dec 2012
Obtain 50 solvers for a problem you have created
Awarded to li jian on 17 Apr 2013
File Exchange 徽章
全部First Review 09 Oct 2019
Publish your first review
Awarded to li jian on 09 Oct 2019
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