use crate::{
HyperedgeTrait,
Hypergraph,
VertexTrait,
};
impl<V, HE> Hypergraph<V, HE>
where
V: VertexTrait,
HE: HyperedgeTrait,
{
/// Returns the number of vertices in the hypergraph.
#[must_use]
pub fn count_vertices(&self) -> usize {
self.vertices.len()
}
}