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Earned on 31 Jan 2012 for solving Problem 3. Find the sum of all the numbers of the input vect....
Earned on 27 Apr 2013 for liking Problem 128. Sorted highest to lowest?.
Earned on 14 May 2013 for commenting on .
Earned on 12 May 2013 for creating Problem 1502. Perl 1: push.
Earned on 2 May 2013 for first solving Problem 1484. Conjunctive Normal Form.
Earned on 29 May 2014 for solving all the problems in CUP Challenge.
Earned on 14 May 2013 for submitting the best solution Solution 243903.
Must have 50 solvers for a problem you created.
Earned on 3 May 2013 for solving all the problems in Tiles Challenge.
Earned on 12 May 2013 for solving all the problems in ASEE Challenge.
Solve all the problems in Cody Challenge problem group.
Create 10 problems.
Earned on 19 Jun 2013 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.
Must receive 10 likes for a solution you submitted.
Must receive 10 likes for a problem you created.
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