- How to use arguments passed to your program
- What are two prototypes of main that you know of, and in which case do you use one or the other
- How to use attribute((unused)) or (void) to compile functions with unused variables or parameters
0-whatsmyname.c a program that prints its name, followed by a new line
1-args.c a program that prints the number of arguments passed into it
2-args.c a program that prints all arguments it receives
3-mul.c a program that multiplies two numbers
4-add.c a program that adds positive numbers
100-change.c a program that prints the minimum number of coins to make change for an amount of money