> only three possible input pairs, (a,b), (a,c), or (b,c) (within each pair, order doesn't matter)
The correct number, ignoring order, is six pairs, because we have to include (a,a), (b,b), and (c,c).
> only three possible input pairs, (a,b), (a,c), or (b,c) (within each pair, order doesn't matter)
The correct number, ignoring order, is six pairs, because we have to include (a,a), (b,b), and (c,c).