def test_dominating_set(self):
input = networkx.generators.cycle_graph(10)
output = graph.dominating_set(input, 4)
self.assertEqual(len(output), 4)
self.assertTrue(networkx.is_dominating_set(input, output))
output = graph.dominating_set(input, 3)
self.assertIsNone(output)
def brute_force(k, graph):
"""This function solves the k-center problem on graphs by exhaustive calculations.
:param k: int
:param graph: Graph
:return: list
"""
graph = add_missing_edges(graph)
test_graph = networkx.Graph()
test_graph.add_nodes_from(graph.nodes())
for edge in sorted(graph.edges(data=True), key=lambda e: e[2]['weight']):
test_graph.add_edge(*edge)
result = dominating_set(test_graph, k) # Das ist langsam
if result:
return result
