Ehrenfest's urn

[zahi48g]

Hi

Thank you for replying.

First , the algorithme is from a book, I've just translated it into the prime language .

Second , it does not try to remove L2(2) from L2 but n from L2 . According to the Ehrenfest'urns model an urn can be empty (this is anticipated in the IF...THEN...ELSE),
so L2(2) may not exist . I should have the following outcomes :

{1,2}
{}
or
{1}
{2}
or
{}
{1,2}
or
{2}
{1}

If you get these results , could copy and paste you code ?

Thank you .