How can I write a code when few node are connected five edges and some nodes are connected four,three and 2 edges .please help me on this .

clc;

clear all;

n = 10;

C= zeros(n, n);

C(1,n)=1;

C(1,n-1)=1;

C(2,n)=1;

A = zeros(n, n);

for i = 1:n

for j = 1:n

if j==i+1 || j == i + 2

A(i,j) = 1;

else

A(i, j) = 0;

end

end

end

B1=A+C

B=B1+B1';

G=graph(B);

plot(G)