/// <summary>
/// Connects two vertices one to another.
/// </summary>
/// <param name="v1">first to connect</param>
/// <param name="v2">second to connect</param>
private static void Connect(AdjencyListVertex <T> v1, AdjencyListVertex <T> v2)
{
v1.vertices.Add(v2);
v2.vertices.Add(v1);
}
public SimplestListGraph(AdjencyListVertex <T> root)
{
Add(root);
this._root = root;
}