How to use Regret-k insertion?

Hi Jsprit community,
Now that I understand how regret heuristic works, I’d like to know if Jsprit uses regret-2 insertion or an other extension. How can we switch from regret-2 to regret-3, and so on?
Thank you

Hi @anasstaha19,
Regret-2. You need to implement and contribute regret-k :slight_smile:.