Identify and correct the errors in the following code

This is a question from the book I am learning c++ from. It just says:

6.21- Identify and correct the errors int he following program:

void p(int i)

{
    int i = 5;
    cout << "i is " << i << endl;

}

I'm not sure what is wrong with this code. I think it probably has to do with the argument of p. When I try to build it in sublime text it says "error: redefinition of 'i'"

If it helps, we are learning about local, static and global variables.

Thanks!