public int CompareTo(DynamicEdge <T> other)
{
if (level != other.level)
{
return(level - other.level);
}
return(key - other.key);
}
/// <summary>
/// Remove edge from adjacent list
/// </summary>
public void RemoveEdge(DynamicEdge <T> edge)
{
var adj = adjacent;
int idx = EdgeListUtility.Index(adj, edge);
adj.RemoveAt(idx);
// Check if flag needs to be updated
if (!((idx < adj.Count && adj[idx].level == edge.level) ||
(idx > 0 && adj[idx - 1].level == edge.level)))
{
euler[edge.level].SetFlag(false);
}
}
public DynamicEdge <T> Link(DynamicVertex <T> other, T value)
{
var e = new DynamicEdge <T>(value, KeyCounter, this, other);
KeyCounter++;
if (!euler[0].IsConnected(other.euler[0]))
{
e.LinkSpanningForests();
}
euler[0].SetFlag(true);
other.euler[0].SetFlag(true);
EdgeListUtility.InsertEdge(adjacent, e);
EdgeListUtility.InsertEdge(other.adjacent, e);
return(e);
}
private static int GetUpperBound <T>(List <DynamicEdge <T> > list, DynamicEdge <T> edge)
{
int low = -1;
int high = list.Count;
while (low + 1 < high)
{
int mid = (low + high) >> 1;
int comp = list[mid].CompareTo(edge);
if (comp > 0)
{
high = mid;
}
else
{
low = mid;
}
}
return(high);
}
public static void RemoveEdge <T>(List <DynamicEdge <T> > list, DynamicEdge <T> edge)
{
list.RemoveAt(Index(list, edge));
}
public static int Index <T>(List <DynamicEdge <T> > list, DynamicEdge <T> edge)
{
int idx = GetUpperBound(list, edge);
return(idx - 1);
}
public static void InsertEdge <T>(List <DynamicEdge <T> > list, DynamicEdge <T> edge)
{
list.Insert(GetUpperBound(list, edge), edge);
}
