Good luck! I think it is totally do-able. There's a resource you may find useful--an old website for the discrete mathematics course at Harvard: http://isites.harvar...=icb.page186244

There you'll find some good exercises and materials, in addition to a very good reference list that can help you if you get stuck somewhere

Oh, yes! My apologies for the typo in my reply. I meant file>> and not cin>>.

Thank you! Your comments were very clear and super helpful

Which one to be concerned about really depends on the application you are submitting or the job you're hoping to get.

If you're hoping to go to med school, law school, or business school, you'll want to take care of your overall GPA. These are very GPA-oriented admission processes.

If you're hoping to go to academic grad school, I have two fun anecdotes: one of my best friends got a C- in a statistics class and still got into Princeton for grad school--for a program in the humanities. Conversely, another friend of mine failed a literature class and then went on to a top 10 math Phd program.

Finally, if you are skipping the whole grad school experience, you might be in luck; I know people who had less than a 3.0 GPA and got terrific jobs because they had secured awesome internships and leadership positions along the way. But again, as the other posters have implied, this depends on the job.

Good luck!

Thank you, sk1v3r!
Your super useful suggestion also took care of some other questions I had about this. Now I have another question: If it is so much easier and neater to use cin, under what conditions would you prefer to use getline?

This also depends on the type of graduate school where you think you will end your education. Here are some scenarios:

If you see yourself eventually going for a PhD (free masters!): you may be able to get your master's along the way, take a leave of absence to get some job experience, and then return to complete your thesis if you choose to do so. This is especially convenient if you are doing well in school now: the top programs actually pay for their own students, saving you a lot of money, and you are often able to defer admission for a year or two to get some related job experience.

If you are eventually going for a professional school (JD, MBA, MD): For an MBA or a DBA (degrees in business), you will most likely need some job experience beforehand--at least in the form of substantial internships. JDs are a bit less concerned with that, but it really wouldn't hurt, given that first-year JD internships are extremely competitive. Finally, if your plan is medical school, you'd be fine just going straight into some more school.