/// <summary>
/// <para><paramref name="from"/> からの最短経路長をダイクストラ法で求める。</para>
/// <para>計算量: O( (|E| + |V|) log |V| )</para>
/// </summary>
public static T[] Dijkstra <T, TOp, TNode, TEdge>(this IWGraph <T, TOp, TNode, TEdge> graph, int from)
where T : struct
where TOp : struct, INumOperator <T>
where TNode : IGraphNode <TEdge>
where TEdge : IWGraphEdge <T>
{
TOp op = default;
var graphArr = graph.AsArray();
var INF = op.MaxValue;
var res = new T[graphArr.Length];
System.Array.Fill(res, INF);
res[from] = default;
var used = new bool[graphArr.Length];
int count = 0;
var remains = new PriorityQueueDijkstra <T, TOp>(graphArr.Length);
remains.Enqueue(default, from);
public DebugView(PriorityQueueDijkstra <TKey, TKOp> pq)
{
this.pq = pq;
}