how to repeat the while loop with the same value of matrix

hello, i have the bellow code , for the second while loop this will be excuted untill matrix L is empty , but i want to repeat the excution for 10 times, so i put the first while loop for iteration, at the end of each iteration of 2nd while loop when the value of L is equal to zero it will make L=L1, where i store the values of L in L1 before excution so i can use it again , at each iteration it will give me different maxRwrd so it will compare it with the previous iteration at the end it will give the maximum one of all iteration , can anyone correct the code for me please ?

MAXRWRD = -Inf;
itermax = 10;
iter = 0;
while  iter<itermax
 iter=iter+1;
while sum(sum(L))>0
 D = zeros(size(L));
for v = 1:N   
  idx = find(L(v,:)==1);
  n = numel(idx);
  if n ~= 0 
    in = randi(n);
    D(v,idx(in)) = 1.0; 
 
     for m=1:M    
       for i=1:N
          if D(v,m)==1 && c(v,i,m)==0
                  D(v,m)=1;   
                  Rwr(v,m)=Rwrd(v,m);
                  L(v,m)=0;
              elseif D(v,m)==1 && c(v,i,m)==1
                  D(v,m)=1;
                  L(i,m)=0;
                  Rwr(v,m)=Rwrd(v,m);
                  L(v,m)=0;

          end
       end
       
     end
     
  end

end 

end
DD=D
REWARD=Rwr
MaxRwrd=sum(sum(Rwr))
MAXRWRD = max(MAXRWRD,MaxRwrd)
L=L1
end 

MAXRWRD
AVGMAXRWRD=MAXRWRD/N

[Jon]

What errors are you getting? Please post the entire error message. In the code you have provided L, N and perhaps other variables are not defined, so I, and others who might respond, can't run the code to see what the problem is. Please provide a self contained example that reproduces the problem.