Solve all the problems in Indexing II
Awarded to JeffY on 26 Aug 2019
Solve all the problems in CUP Challenge
Awarded to JeffY on 10 Jul 2019
Solve all the problems in Introduction to MATLAB problem group
Awarded to JeffY on 10 Jul 2019
Solve a community group
Awarded to JeffY on 08 Apr 2019
Like a problem or solution
Awarded to JeffY on 24 Apr 2017
Solve a problem for the first time
Awarded to JeffY on 24 Apr 2017
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