Hlep change the program .As easy and automatic.

i=1;
while (100-2^i>0)
    i=i+1;
end
k=i-1
e1=100-2^k
while (e1-2^k<0)
    k=k-1;
end
k1=k
e2=e1-2^k1
while(e2-2^k1<0)

      k1=k1-1;

end

k2=k1

e3=e2-2^k2

[the cyclist]

Please explain the problem with the code. Are you getting an error? Are you getting an unexpected result? Does this code run too slowly for your purpose?

You need to help explain all this to us, if you want us to help you.