Let me sneak in to the conversation here. The programming concept is
identical no matter whether it is C++, Java, C#, python and so on. The
only difference is their syntax. If you are pretty good in logic or
Mathematics, then programming classes shouldn't be that hard. In order
to be proficient in programming languages, you need an adequate
practice.
Garbage, if you need extra bucks and you are really good
at C++, try www.liveperson.com. Many students go there seeking help in
their programming assignments. You can charge them according to the
level of difficulty of the assignment.
I don't recommend  students
to use such sites as it demeans their programming ability. Like
Ahead_of_the_rest said, you might end up with an A in the course but
during a job interview your A won't keep any meaning unless you solve
the assigned problems. It takes time to grasp the programming concept,
but if you try harder you will get it eventually.

Happy coding!