public SimpleSet <T> Difference(SimpleSet <T> secondSet)
{
SimpleSet <T> newSet = new SimpleSet <T>(items);
foreach (var item in secondSet.items)
{
newSet.Remove(item);
}
return(newSet);
}
public SimpleSet <T> Difference(SimpleSet <T> set)
{
// return new SimpleSet<T>(_items.Except(set._items));
var result = new SimpleSet <T>(_items);
foreach (var item in set._items)
{
result.Remove(item);
}
return(result);
}