This isn't difficult: it's all the basic stuff you just covered in your lesson, I'm sure.
The first program people have to write is normally "Hello World" - so I'm sure you have already written something like this:
#include <stdio.h>
int main()
{
printf("Hello, World!\n");
return 0;
}
So stop panicking, and read the instructions carefully - they are very explicit!
Start with your "Hello world" program, and change it do do each step in turn - I'll do the first one for you, and the rest are up to you:
stores a number of your choice in a variable called a
#include <stdio.h>
int main()
{
int a;
a = 666;
return 0;
}
There! Done! Was that so difficult?
Now get on and try the next one - it is just as simple!