1.The problem of collecting and delivery shunting of non-through wagon flow on the actinoid private line belongs to a kind of the combinatorial optimization problems.
2.This circuit is of Independence and perfectibility hence can be used to fabricate Deka-Value logic systems and implement any Deka-Value combinatorial logic and temporal logic.
12.But thinking of colors on the cube, you're naturally led to an interesting combinatorial question: Is there a way to color the cube so that the three neighbors of any given vertex will always represent red, green and blue.