Earned on 5 Aug 2013 for solving Problem 2. Make the vector [1 2 3 4 5 6 7 8 9 10].
Earned on 8 Aug 2013 for liking Problem 32. Most nonzero elements in row.
Earned on 8 Aug 2013 for commenting on Solution 39915.
Earned on 12 Aug 2013 for creating Problem 1786. Create an index-powered vector.
Earned on 14 Aug 2013 for first solving Problem 1824. Find and replaces spaces from a input string w....
Earned on 5 Feb 2014 for solving all the problems in CUP Challenge.
Solve a problem with a best solution.
Earned on 22 Aug 2016 for having 50 or more solvers for Problem 1835. Matrix to column conversion.
Solve all the problems in Tiles Challenge problem group.
Solve all the problems in ASEE Challenge problem group.
Solve all the problems in Cody Challenge problem group.
Earned on 8 Jan 2014 for creating 10 problems.
Solve 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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