Start to implement K-clustering

src/k_clustering.rs

@@ -0,0 +1,10 @@
+use crate::prims::WeightedGraph;
+use std::convert::TryInto;
+
+pub fn k_clustering(graph: &WeightedGraph) -> i32 {
+	for vertex in graph {
+		println!("{:?}", vertex.edges.len());
+	}
+	graph.len().try_into().unwrap()
+}
+