You're right. Now that I think about it. Someone else mentioned that it doesn't test for unconnected nodes, or nodes connected only via back links. However, fi

You're right. Now that I think about it. Someone else mentioned that it doesn't test for unconnected nodes, or nodes connected only via back links. However, figuring out how to find them will depend heavily on your implementation. Most likely you store all of them in an array and perform the search on each of them. I wish I could find my data structures and algorithms textbook. I lent it out and I really wish I still had it...