public Node(Node node)
{
Marked = node.Marked;
F = node.F;
L = node.L;
Number = node.Number;
}
public void DFS(ref Node s, ref int t, int i)
{
adjacency_list[i].Key.Marked = true;
adjacency_list[i].Key.L = s;
foreach (var item in adjacency_list[i].Value)
{
int index = adjacency_list.FindIndex(x => x.Key.Number == item);
if (!adjacency_list[index].Key.Marked)
DFS(ref s, ref t, index);
}
t++;
adjacency_list[i].Key.F = t;
}