function [Jammer,restnode]=intlintest(adj_matrix,k)
u = adj_matrix;
n = length(adj_matrix);
f = sum(u);                % 因为是对称矩阵，行和列和相同，所以无需两个都考虑；
%f = sum(u)+sum(u\');                
f = f\';
A = -ones(1,n);             % Ax <= b (Ax 表示剩下节点的度之和)； 目标函数为求剩下节点度和最小；
b = -(n-k);                 % resnodenum >= k; 
lb = zeros(n,1);
ub = ones(n,1);
intcon=[1:n];
tic
[x fval]= intlinprog(f,intcon,A,b,[],[],lb,ub) ;
toc
Jammernum = length(find(x==0));
Jammer = zeros(Jammernum,1);
Jammer = find(x==0);
restnode = zeros(n-Jammernum,1);
restnode = find(x==1);
Jammer = Jammer\';
restnode = restnode\';
end