Cody

Derik Zhou

6935
Rank
6
Badges
325
Score
1 – 28 of 28

Derik Zhou received Quiz Master badge for Solution 4257415

on 14 Dec 2020

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 – 28 of 28