Thank you  Michael, I already did, I realized immediately it was a typing
error.
I have to double thank you because you made me understand a thing in which
I was stuck.

About the upper bound, I realized the bins could't have been enough, so my
first code was a greedy solution: 1 bin per 1 item.
I think this could be largely improved, as you showed me, but I still have
to analyze to fully  understand your suggestion.

Do you think I should write the full bpp with types, code? Maybe it could
help someone.

Best regards


Il giorno lun 9 ott 2023 alle ore 18:26 Michael Hennebry <
[email protected]> ha scritto:

> On Fri, 6 Oct 2023, Michael Hennebry wrote:
>
> > YY{y in mouldTypes, b in 1..n, i in I: mo[i]==t} y[t, b] >= x[i, b] ;
>
> Oops. A y where a t was needed.  The corrected version:
> YY{t in mouldTypes, b in 1..n, i in I: mo[i]==t} y[t, b] >= x[i, b] ;
>
>
>

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