Cody

Derik Zhou

4920
Rank
5
Badges
315
Score
1 – 27 of 27

Derik Zhou received Speed Demon badge for Solution 652017

on 15 Apr 2015

Derik Zhou received Commenter badge for Solution 222600

on 15 Apr 2015

Derik Zhou submitted a Comment to Solution 222600

like it, simplicity!

on 15 Apr 2015

Derik Zhou received Promoter badge for Problem 4. Make a checkerboard matrix

on 15 Apr 2015

Derik Zhou received Solver badge for Solution 568911

on 29 Jan 2015

1 – 27 of 27