Definition:Cycle Graph

A cycle graph is a graph which consists of a single cycle.

The cycle graph of order $n$ is denoted $$C_n$$.

A cycle graph is $2$-regular.

Examples


Note that:
 * $$C_1$$ is a loop-graph;
 * $$C_2$$ is a multigraph;
 * $$\forall n \ge 3: C_n$$ is a polygon with $$n$$ sides.