Not to make too sharp a point of it, but a really good way to learn programming (and especially so with the Greeps) is to try some different things and see what happens. There are several quite basic strategies which will help quite a bit (compared to the vanilla scenario) but you will learn a lot more by implementing them yourself than you would by looking at other people's code! Also, because Greeps is run as a competition in classrooms, we really try to discourage people from sharing their solutions.