(15 points) A network topology specifies how computers, printers, and other devices are connected over a network. For example,---is six nodes connected in a line.Given an adjacency matrix A[0.n 1,0..n -1] representing the connection of the nodes, where n > 3, design a brute-force algorithm to indicate whether or not the graph has a line topology. Also, indicate its time efficiency class. Recall that in this case, the adjacency matrix will represent an undirected graph