Why did the long contest rating changed?

After the end of April long challenge my rating is 6039 but today it’s shows 6015. Please someone explain me …

It’s probably as many of the disqualified solution on grounds of cheating detected by MOSS have been rejudged and accepted. My ratings too dropped a little.

But your graph shows that rating was 5284 in March?

If people are caught in plagarism , their submission are removed from ranklist , if proven not guilty , their submissions will be put back , and after some thime , based on ranklist , the rating changes are recalculated and reapplied on all profiles , hence some ratings and ranks change accordingly.

as i said first my rating rise to 6039 and than it comes down to 6015. Btw i understand…thanks for the reply…