public UndirectedGraphTraverse(GraphBase graph)
{
_Graph = graph;
_Items = new LinkedList <int>();
_EdgeTo = new int[graph.V];
for (int i = 0; i < _EdgeTo.Length; i++)
{
_EdgeTo[i] = -1;
}
}
void dfs(int vertex, ICollection <int> items, bool[] marked, GraphBase graph)
{
if (marked[vertex])
{
return;
}
marked[vertex] = true;
items.Add(vertex);
foreach (var w in graph.GetVertexAdjcency(vertex))
{
if (!marked[w])
{
dfs(w, items, marked, graph);
_EdgeTo[w] = vertex;
}
}
}
void bfs(int startVertex, ICollection <int> items, bool[] marked, GraphBase graph)
{
var queue = new Queue <int>();
queue.Enqueue(startVertex);
items.Add(startVertex);
marked[startVertex] = true;
while (queue.Count > 0)
{
var vertex = queue.Dequeue();
foreach (var w in graph.GetVertexAdjcency(vertex))
{
if (!marked[w])
{
marked[w] = true;
items.Add(w);
_EdgeTo[w] = vertex;
queue.Enqueue(w);
}
}
}
}
protected override void CreateTraverse(ICollection <int> items, bool[] marked, GraphBase graph)
{
dfs(_StartVertex, items, marked, graph);
}
protected abstract void CreateTraverse(ICollection <int> items, bool[] marked, GraphBase graph);