exclusive or for lists?

Question

Hi Guys,

I have two lists:

I want a final list with b,c,d as list elements. Can I do an exclusive or of the two lists to get that?

Thanks.

Jeff_Perkinson · Answer

Associative arrays make this pretty simple:

unknown · Answer

Provided neither list contains any duplicate elements, the following ought to do the trick:

=1, i--,
		j = contains(listb, lista[i]);
		if(j > 0, remove from(lista, i); remove from(listb, j))
		);
	sort list(lista || listb)
	);

OneOrOtherOnly = ExclusiveOr(SomeNames, MoreNames);
show(OneOrOtherOnly);

-->

There's probably a neater way to do it than this, so if anybody can see one I'd be interested.