Obtain 50 solvers for a problem you have created
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3 of your answers have been accepted
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Create 10 problems
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Solve a problem with a best solution
Awarded to jean claude on 30 Nov 2017
Be the first to solve a problem
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Create a problem
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Solve 500 problems
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Like a problem or solution
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Comment on a problem or solution
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Solve a problem for the first time
Awarded to jean claude on 15 Oct 2017
Accept 5 answers given by other contributors
Awarded to jean claude on 06 Oct 2017
Provide your first answer ever to someone else's question
Awarded to jean claude on 05 Oct 2017
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