public static <V, W, E extends DirectedWeightedEdge<V, W>> void relaxEnough(
Graph<V, E> graph,
SingleSourceShortestPathCalcStatus<V, W, E> status,
InfinitableAddableNumberSystem<W> ns) {
for (int i = 0; i < graph.getVertices().size() - 1; i++)
for (E e : AllEdgeInGraph.wrap(graph)) Relax.relax(status.distance, status.previous, e, ns);
}
private static <V, W, E extends DirectedWeightedEdge<V, W>> void relaxToCheckNegativeCycle(
Graph<V, E> graph,
InfinitableAddableNumberSystem<W> ns,
SingleSourceShortestPathCalcStatus<V, W, E> status) {
for (E e : AllEdgeInGraph.wrap(graph)) {
boolean relaxed = Relax.relax(status.distance, status.previous, e, ns);
AssertStatus.assertTrue(!relaxed, "contains negative cycle");
}
}