The requirements for an undergraduate degree can be found on their page. Noodle also has a good information page as well.
Good luck!
The measure of how "hard" it is to get into a university is relative and based on a large number of factors. A quick Google search showed me an admission rate of 36%, which I would in fact consider "hard" to get into. This of course, is an average among all students that applied and the acceptance rate for all schools varies depending on the major, income, etc. But I wouldn't worry too much about acceptance rate. Just do your best in school, keep your GPA up, and the rest will fall into place! Best of luck!