QwertyManiac
Commander in Chief
Is /usr/include/ write-able by a normal user in your college? Crappy administrator if so. Ours are pretty secure, and exploits like local root don't work either, thanks to the updates.
Cheating tips -
Copy all the lab programs to C:\windows\system32\some-system-named-folder
In case of linux, create a dir under /usr/include
Also, rename all *.c* to *.h so they wont be deleted even if the admin deletes all programs using command line.
Do this before the exams, when you've got some lab class, and have fun during practical exams
Disclaimer: I am in no way responsible for any actions caused by those who read this post.