max/edmonds-matching-algorithm
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add greedy heuristic for initialization

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This commit is contained in:
Maximilian Keßler 2023-11-05 19:43:29 +01:00
parent d5f01f5c70
commit 5674dff7a6
Signed by: max
GPG key ID: BCC5A619923C0BA5
1 changed files with 5 additions and 3 deletions
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src/edmonds.cpp
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@ -214,12 +214,13 @@ void find_greedy_matching(Graph & graph)
for(NodeId node_id = 0; node_id < graph.num_nodes(); ++node_id) for(NodeId node_id = 0; node_id < graph.num_nodes(); ++node_id)
{ {
if (graph.matched_neighbor(node_id) == node_id) { if (graph.matched_neighbor(node_id) == node_id) {
for(NodeId neighbor_id : graph.node(node_id).neighbors()) for(NodeId const neighbor_id : graph.node(node_id).neighbors())
{ {
if(graph.matched_neighbor(neighbor_id) == neighbor_id) if(graph.matched_neighbor(neighbor_id) == neighbor_id)
{ {
graph.node(neighbor_id).matched_neighbor = node_id; graph.node(neighbor_id).matched_neighbor = node_id;
graph.node(node_id).matched_neighbor = neighbor_id; graph.node(node_id).matched_neighbor = neighbor_id;
break;
} }
} }
} }
@ -227,8 +228,9 @@ void find_greedy_matching(Graph & graph)
} }
Graph maximum_matching(Graph & graph) { Graph maximum_matching(Graph & graph) {
//find_greedy_matching(graph); graph.reset_forest();
graph.reset_matching(); find_greedy_matching(graph);
check_integrity(graph);
maximum_matching_from_initial_matching(graph); maximum_matching_from_initial_matching(graph);
ED::Graph matching = ED::Graph(graph.num_nodes()); ED::Graph matching = ED::Graph(graph.num_nodes());