private void Dfs(Digraph g, int s)
{
_marked[s] = true;
foreach (int w in g.Adj(s))
{
if (!_marked[w])
{
Dfs(g, w);
}
}
}
private void DFS(Digraph graph, int v)
{
_marked[v] = true;
foreach (var w in graph.Adj(v))
{
if (!_marked[w])
{
DFS(graph, w);
}
{
}
}
}