Understand the C preprocessor for macros and file inclusion, and learn dynamic memory management with malloc, calloc, and free.
Understand the role of the preprocessor and the two most common directives: `#include` and `#define`.
Explore function-like macros that can accept arguments, and understand their benefits and pitfalls.
Learn to allocate and deallocate memory at runtime using `malloc`, `calloc`, `realloc`, and `free`.