Does anybody know how to use integers larger than the "long long int" type? I have tried using arrays of ints, but mathematical functions are impossible.

> is there a way to create my own bigNum class, and use it like an int?
I assume they taught you basic math at school, like how to add multi-digit numbers together, how to subtract them, how to multiply them etc.

It's the same thing, except you deal with multiple bytes.

How can I make this to continue until the user presses N? I've tried using while(1), while( option == 'y' || option == 'Y') but it kept giving an error ...