Lines of code I've written in the last 24 hours:

You are an immortal in a MUD and over the prior 24 hours you have:

1) Created five new rooms. How many rooms have you created in the prior 24 hours? Five.
2) Created seven new rooms, destroyed three old rooms. How many rooms have you created in the prior 24 hours? Seven.
3) Created four new rooms, destroyed seventeen. How many rooms have you created in the prior 24 hours? Four.
4) Created zero new rooms, destroyed four old rooms. How many rooms have you created in the prior 24 hours? Zero.

I don't see how creating lines of code should be counted any differently. The question did not ask for net change in lines of code, just how many news ones you've written.