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Company/University

Nanjing Normal University

Personal Profile

http://computer.njnu.edu.cn/profile.ashx?staffID=102

Professional Interests: Data Mining

Professional Interests

Data Mining

3071Rank

5Badges

205Score

Earned on 25 Jan 2012 for solving Problem 1. Times 2 - START HERE.

Earned on 25 Apr 2012 for liking Problem 26. Determine if input is odd.

Comment on a problem or solution.

Earned on 25 Apr 2012 for creating Problem 623. Rotate a Matrix.

Earned on 25 Apr 2012 for first solving Problem 623. Rotate a Matrix.

Solve all the problems in CUP Challenge problem group.

Solve a problem with a best solution.

Earned on 23 Mar 2015 for having 50 or more solvers for Problem 623. Rotate a Matrix.

Solve all the problems in Tiles Challenge problem group.

Solve all the problems in Cody Challenge problem group.

Solve all the problems in ASEE Challenge problem group.

Create 10 problems.

Solve 500 problems.

Solve all the problems in Modeling and Simulation Challenge problem group.

Must receive 25 total likes for the problems you created.

Solve all the problems in Magic Numbers problem group.

Must receive 50 total likes for the solutions you submitted.

Must receive 10 likes for a solution you submitted.

Must receive 10 likes for a problem you created.