A friend was telling me about "Automatic Plagiarism detectors"
I am not sure if he was telling the truth or just making this up, but he stated that some universities use "Automatic Plagiarism detectors" that are able to compare programming programs of every student in a class to see if the programs are similar or nearly identical.
Are there software out there that are capable of doing this?
I mean like...what do they compare? variables names? spacing? struture of code? ...what?