/sci/ - Science & Math

I'm collecting as many resources as possible on computer programming with an aim to private study.
Considering C/C++. From what I understand they are difficult to get to grips with but, as both seem like very versatile programming languages I've decided it's more efficient to just go with them. I don't want to go down the line and find that I've been limited by my choice of programming language after all. I may change my mind if I'm given a compelling argument.

So what books, online resources of courses does /sci/ recommend for creating a good foundation with either of these programming languages?