private static void Traverse(Node node, List<string> nodes, IEnumerable<Node> visited)
{
nodes.Add(node.Name);
var children = node.Children();
var one = children.Except(visited).FirstOrDefault();
if(one != null)
{
visited = visited.Append(one);
Traverse(one, nodes, visited);
Traverse(node, nodes, visited);
}
}
public static List<Node> WhereAreTheExists(Node node)
{
return node.Children();
}