👉 The concept of a "densest" state or region in a graph is defined as one with the highest degree of nodes. In other words, it's the most densely populated node set within a given graph. For example, if you have a graph G = (V,E) where V = {A,B,C,D} and E = {(A,B),(B,C),(C,D),(D,A)}, then D is considered as densest because it has the highest degree of nodes in G.