DreamGrid has just found an undirected simple graph with $n$ vertices and no edges (that's to say, i
DreamGridhasjustfoundanundirectedsimplegraphwithnnnverticesandnoedges(that’stosay,it’sagraphwithnnnisolatedvertices)inhisrightpocket,wheretheverticesarenumberedfrom1tonnn.Nowhewouldliketoperformqqqope