For CS, you probably need the following in terms of major requirements:
- Math: calculus, linear algebra, discrete math, calculus-based statistics if available
- CS: introductory CS courses, including data structures and computer systems
If the four year school’s CS major is engineering based or ABET accredited, expect to need the following in addition to the above:
- Math: multivariable calculus, possibly differential equations
- Science: usually two semesters of calculus-based physics and another semester of science (often chemistry or additional physics).
Four year schools typically have additional general education requirements:
- English composition, usually two semesters.
- Humanities and/or social science general education in varying amounts, depending on the school.
- If not engineering based, there may be a foreign language requirement.