my $containers = ...
my $objects = ...

NestedLoops(
  [ (sub{ [0 .. $containers-1] }) x $objects ],
  sub {
    my @assignment = @_;

    my @bins;
    push @{ $bins[$assignment[$_]] }, $_ for 0 .. $objects-1;
    
    ## @bins now contains the groupings

    ## filter out if one of the bins is empty

  }
);