MATLAB: The program is not running, and how to run it

Question

x = zeros(1,9);
relation = zeros(9,9);
relation =[0 0 0 0 5 5 5 0 0;
           0 0 5 0 0 0 0 5 0;
           0 5 0 0 0 0 0 0 5;
           0 0 0 0 0 0 0 5 0;
           5 0 0 0 0 0 0 0 5;
           5 0 0 0 0 0 0 0 0;
           5 0 0 0 0 0 0 0 0;
           0 0 0 5 0 0 0 0 0;
           0 0 5 0 5 0 0 0 0;];
check =0;
for x(1)=0:1
    for x(2)=0:1
        for x(3)=0:1
            for x(4)=0:1
                for x(5)=0:1
                    for x(6)=0:1
                        for x(7)=0:1
                            for x(8)=0:1
                                for x(9)=0:1
                                    sum=0;
                                      for n=1:9
                                          sum = sum + x(n);
                                      end
                                      if sum == 5
                                          value=0;
                                          for count1 = 1:9
                                              for count2 =count1:9
                                                  value = x(count1)*x(count2)*relation(count1,count2);
                                              end
                                          end
                                      end
                                      if value>check
                                          reply_value = value;
                                          reply_x =x;
                                      end
                                  end
                              end
                          end
                      end
                  end
              end
          end
      end
  end

Answer 1

You cannot use an indexed variable for a "for" loop variable.

By the way:

X = dec2bin(0:2^9-1) - '0';
mask = sum(X, 2) == 5;
X5 = X(mask, :);

Now X5 is a (something) by 9 array in which every row has sum 5. You can work on your processing from there.