how to update number of nodes variable after every iteration in wsn

i have to update number of nodes after the completion of 100 rounds,..........plz help me how to do so

for r=0:1:maximum_lifetime
    r

      if(mod(r, round(1/p) )==0) %remainder
          for i=1:1:n
              leach(i).G=0;            % it will assign to the nodes that have not been cluster head .
          end
      end
      hold off;
      dead=0;
      figure(1);

here i want to run for loop again for new nodes

Answer 1

[Walter Roberson]

Your code has no "number of nodes" variable, and you give no information that might allow us to figure out how many nodes exist.