This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
The fragments are presented as pictures. The question will explicitly specify if you can use each fragment more than once or not. In any case you wont have another instance of that picture to use if the code fragment can be used only once.