Utility crate to handle common tasks that require graphs
warning! this crate is not yet complete and the API is yet to change.
```rs use graph::Graph;
let mut graph = Graph::new(); // insert the numbers 1 to 10 as vertices for i in 1..=10 { graph.addvertex(i); } asserteq!(graph.size(), 10);
// construct a graph satisfying the following condition // there exists an edge (u, v) if the condition holds graph.constructedgesfrom(|&u, &v| u != v && (u + v) % 10 == 0); ```