These days, cases of cheating (reported or otherwise) go un-handled as can be seen from this blog. However, this is a cheating case that needs to be handled separately, so it is still somewhat understandable

But what about:

1) This case where the code is literally copy-pasted letter to letter with the difference being 2 spaces in the entire code?

2) These two submissions from yesterday's contest: 40441960 and 40428475 where there is not even a single character difference. Their codes for C are copied too, albeit with some modification of spaces.

In both of those cases, no-one was disqualified and I'm sure there must be more such cases.

Can we have some way of reporting these cheating cases that are then handled (rather than commenting on blogs or creating new blogs) and a better plagiarism checker?