Earned on 5 May 2012 for solving Problem 1. Times 2 - START HERE.
Earned on 5 May 2012 for liking Solution 3031.
Earned on 25 Nov 2012 for commenting on Problem 1050. Basics: 'Find the eigenvalues of given matrix.
Earned on 25 Nov 2012 for creating Problem 1057. Given a matrix, return the last eigen value.
Earned on 8 Dec 2012 for first solving Problem 1107. Find max.
Earned on 22 Dec 2013 for solving all the problems in CUP Challenge.
Earned on 3 Dec 2015 for submitting the best solution Solution 141502.
Earned on 19 Aug 2016 for having 50 or more solvers for Problem 1420. only input.
Earned on 28 Apr 2013 for solving all the problems in Tiles Challenge.
Earned on 23 Aug 2015 for solving all the problems in ASEE Challenge.
Earned on 30 May 2016 for solving all the problems in Cody Challenge.
Earned on 12 Apr 2013 for creating 10 problems.
Earned on 10 Jan 2014 for solving 500 problems.
Solve all the problems in Modeling and Simulation Challenge problem group.
Solve all the problems in Magic Numbers problem group.
Must receive 25 total likes for the problems you created.
Must receive 50 total likes for the solutions you submitted.
Solve all the problems in Indexing I problem group.
Must receive 10 likes for a solution you submitted.
Must receive 10 likes for a problem you created.
Solve all the problems in Indexing II problem group.
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