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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 s = PickSource() t = PickSink() dist[s] = 0 PQ.Insert(s,dist[s]) v = PQ.DeleteMin() while v != t: for w in Neighborhood(v): if dist[w] == gInfinity: pred[w] = v dist[w] = dist[v] + length[(v,w)] PQ.Insert(w,dist[w]) elif dist[w] > dist[v] + length[(v,w)]: pred[w] = v dist[w] = dist[v] + length[(v,w)] PQ.DecreaseKey(w,dist[w]) v = PQ.DeleteMin() ShowPath(s,t)