This campaign is over.
A certain score is allotted for every question. This score for a problem decreases as there is an increase in number of people who have solved that question.
For Ex - Question A fetches you "X" score when you're the first participant to solve the question. However, it fetches you some "X-Y" score, when some "Z" participants have already solved this question.
Plagiarism leads to negative marking allotment.