private void DFS(int v, int dest, Stack <int> stack, int cost)
{
stack.Push(v);
visited[v] = true;
if (v == dest)
{
visited[dest] = false;//let other paths arrive at destination
paths.Add(cost, stack.ToList().Reverse <int>());
}
else
{
foreach (int w in graph.GetAdjacents(v))
{
if (!visited[w])
{
DFS(w, dest, stack, cost + graph.GetCost(v, w));
}
}
}
stack.Pop();
}