mercator_rejection

Around here we just have little stickers on the produce with a code number on it. Most produce is just stacked with no packaging. You collect as many as you want in a bag. At the check out, the little code number can be used tell what the exact variety is.

This seems a lot simpler than lazer etching to me, but idk, maybe that is really cheap and easy too?

Any recursive algorithm can be made iterative and vise versa. It really depends on the algorithm if the function calls are a major factor in performance.

In the US, they are quite popular.