其它
April wants to split $$6$$ identical sweets into $$2$$ identical containers. How many different ways can she do so if a container can be empty? 
Overseas Competition->Knowledge Point->Counting Modules->Questions Involving Enumeration->Enumeration
$$6=0+6$$  $$6=1+5$$  $$6=2+4$$  $$6=3+3$$ 