- #1

- 98

- 3

- Summary:
- If it is not helpful to us to know if degree odd or even, how can we think in rounded paths?

Here is a graph. I wonder if it has hamilton path or circuit. In hamilton path we have to cross once and only once at an edge, and the start and the finish must be different locations. In hamilton circuit we have to start and finish the same edge. So the circle which B is rounded, which kind of case in there?