public static Dictionary <int, T> readNodes <T>(string description, INodeFactory <T> factory) where T : Node
{
var nodes = new Dictionary <int, T>();
var split = description.Split(' ');
for (int i = 0; i < split.Length; i += 3)
{
var id = Int32.Parse(split[i]);
var n = nodes.ContainsKey(id) ? nodes[id] : factory.create(id);
int edgeId = Int32.Parse(split[i + 1]);
int edegeWeight = Int32.Parse(split[i + 2]);
n.Edges.Add(edgeId, edegeWeight);
if (!nodes.ContainsKey(id))
{
nodes.Add(id, n);
}
if (nodes.ContainsKey(edgeId))
{
var nEdge = nodes[edgeId];
if (!nEdge.Edges.ContainsKey(n.Id))
{
nEdge.Edges.Add(n.Id, edegeWeight);
}
}
else
{
var nEdge = factory.create(edgeId);
nEdge.Edges.Add(n.Id, edegeWeight);
nodes.Add(edgeId, nEdge);
}
}
return(nodes);
}