public void Roots <T>(IVertexAndEdgeListGraph <T, Edge <T> > g)
{
var roots = new HashSet <T>(g.Roots());
foreach (var edge in g.Edges)
{
Assert.IsFalse(roots.Contains(edge.Target));
}
}
private void Roots <T>(IVertexAndEdgeListGraph <T, Edge <T> > g)
{
var roots = new HashSet <T>(g.Roots());
foreach (var edge in g.Edges)
{
Assert.Contains(edge.Target, roots);
}
}
private static void Roots <T>([NotNull] IVertexAndEdgeListGraph <T, Edge <T> > graph)
{
var roots = new HashSet <T>(graph.Roots());
foreach (Edge <T> edge in graph.Edges)
{
Assert.IsFalse(roots.Contains(edge.Target));
}
}