For the first part, we're suppose to have one header file that declares the node such ex : class node{ int, node, ...} and then a second file, a .cpp, that defines the node. I'm not too sure what it means by "defines a linked list node" since the header file declares it and the attributes i'm going to use. Declared to me is just the attributes and variables a class is going to have and defined actually initializes them with values. Not sure what goes where.