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li haitao
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![Cody Promoter - Like a problem or solution Promoter](/images/responsive/supporting/matlabcentral/cody/badges/promoter.png)
Promoter 13 Nov 2012
![Cody Commenter - Comment on a problem or solution Commenter](/images/responsive/supporting/matlabcentral/cody/badges/commenter.png)
Commenter 14 Nov 2012
![Cody Solver - Solve a problem for the first time Solver](/images/responsive/supporting/matlabcentral/cody/badges/solver.png)
Solver 11 Nov 2012
![Cody Scholar - Solve 500 problems Scholar](/images/responsive/supporting/matlabcentral/cody/badges/scholar.png)
Scholar 29 Nov 2017
![Cody Leader - Solve a problem with a best solution Leader](/images/responsive/supporting/matlabcentral/cody/badges/leader.png)
Leader 30 Nov 2017
![Cody Speed Demon - Be the first to solve a problem Speed Demon](/images/responsive/supporting/matlabcentral/cody/badges/speed_demon.png)
Speed Demon 04 Dec 2017
![Cody Creator - Create a problem Creator](/images/responsive/supporting/matlabcentral/cody/badges/creator.png)
Creator 12 Dec 2017
![Cody ASEE Challenge Master - Solve all the problems in ASEE Challenge ASEE Challenge Master](/images/responsive/supporting/matlabcentral/cody/badges/ASEE_challenge_master.png)
ASEE Challenge Master 04 Mar 2014
![Cody Cody Challenge Master - Solve all the problems in Cody Challenge Cody Challenge Master](/images/responsive/supporting/matlabcentral/cody/badges/cody_challenge_master.png)
Cody Challenge Master 22 Oct 2018
![Cody Cody5 Easy Master - Solve all the problems in Cody5:Easy Cody5 Easy Master](/images/responsive/supporting/matlabcentral/cody/badges/cody_5th_anniversary_easy_badge.png)
Cody5 Easy Master 27 Nov 2018
![Cody CUP Challenge Master - Solve all the problems in CUP Challenge CUP Challenge Master](/images/responsive/supporting/matlabcentral/cody/badges/CUP_challenge_master.png)
CUP Challenge Master 04 Mar 2014
![Cody Divisible by x Master - Solve all the problems in Divisible by x Divisible by x Master](/images/responsive/supporting/matlabcentral/cody/badges/divisible_by_x_master.png)
Divisible by x Master 16 Nov 2018
![Cody Matrix Manipulation I Master - Solve all the problems in Matrix Manipulation I Matrix Manipulation I Master](/images/responsive/supporting/matlabcentral/cody/badges/matrix_manipulation_master_1.png)
Matrix Manipulation... 16 May 2018
![Cody Tiles Challenge Master - Solve all the problems in Tiles Challenge Tiles Challenge Master](/images/responsive/supporting/matlabcentral/cody/badges/tiles_challenge_master.png)
Tiles Challenge Master 21 Sep 2013
![Cody Draw Letters - Solve all the problems in Draw Letters problem group Draw Letters](/images/responsive/supporting/matlabcentral/cody/badges/mathworks_generic_group.png)
Draw Letters 10 Oct 2018
![Cody Project Euler I - Solve Project Euler problems using Matlab Project Euler I](/images/responsive/supporting/matlabcentral/cody/badges/project_euler.png)
Project Euler I 27 Sep 2018
![Cody Introduction to MATLAB Master - Solve all the problems in Introduction to MATLAB problem group Introduction to MATLAB Master](/images/responsive/supporting/matlabcentral/cody/badges/introduction_to_matlab.png)
Introduction to... 18 Jan 2019
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AllePromoter 13 Nov 2012Commenter 14 Nov 2012Solver 11 Nov 2012Scholar 29 Nov 2017Leader 30 Nov 2017Speed Demon 04 Dec 2017Creator 12 Dec 2017ASEE Challenge Master 04 Mar 2014Cody Challenge Master 22 Oct 2018Cody5 Easy Master 27 Nov 2018CUP Challenge Master 04 Mar 2014Divisible by x Master 16 Nov 2018Matrix Manipulation... 16 May 2018Tiles Challenge Master 21 Sep 2013Draw Letters 10 Oct 2018Project Euler I 27 Sep 2018Introduction to... 18 Jan 2019