[510] | 1 | // -*- c++ -*- |
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| 2 | #include <iostream> |
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| 3 | #include <fstream> |
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| 4 | #include <vector> |
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| 5 | |
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| 6 | #include <list_graph.h> |
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| 7 | //#include <smart_graph.h> |
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| 8 | //#include <dimacs.h> |
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[555] | 9 | #include <hugo/time_measure.h> |
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[510] | 10 | #include <for_each_macros.h> |
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[602] | 11 | #include <bfs_dfs.h> |
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[510] | 12 | #include <bipartite_graph_wrapper.h> |
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[555] | 13 | #include <hugo/maps.h> |
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[510] | 14 | #include <max_flow.h> |
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[558] | 15 | #include <graph_gen.h> |
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[559] | 16 | #include <max_bipartite_matching.h> |
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[510] | 17 | |
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| 18 | using namespace hugo; |
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| 19 | |
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| 20 | int main() { |
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| 21 | //typedef UndirListGraph Graph; |
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| 22 | typedef BipartiteGraph<ListGraph> Graph; |
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| 23 | |
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| 24 | typedef Graph::Node Node; |
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| 25 | typedef Graph::NodeIt NodeIt; |
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| 26 | typedef Graph::Edge Edge; |
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| 27 | typedef Graph::EdgeIt EdgeIt; |
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| 28 | typedef Graph::OutEdgeIt OutEdgeIt; |
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| 29 | |
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| 30 | Graph g; |
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| 31 | |
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| 32 | int a; |
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| 33 | std::cout << "number of nodes in the first color class="; |
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| 34 | std::cin >> a; |
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| 35 | int b; |
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| 36 | std::cout << "number of nodes in the second color class="; |
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| 37 | std::cin >> b; |
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| 38 | int m; |
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| 39 | std::cout << "number of edges="; |
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| 40 | std::cin >> m; |
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| 41 | |
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| 42 | std::cout << "Generatig a random bipartite graph..." << std::endl; |
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| 43 | random_init(); |
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[558] | 44 | randomBipartiteGraph(g, a, b, m); |
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[510] | 45 | |
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[512] | 46 | // std::cout << "Edges of the bipartite graph:" << std::endl; |
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| 47 | // FOR_EACH_LOC(EdgeIt, e, g) std::cout << e << " "; |
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| 48 | // std::cout << std::endl; |
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[510] | 49 | |
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[512] | 50 | // std::cout << "Nodes:" << std::endl; |
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| 51 | // FOR_EACH_LOC(Graph::NodeIt, v, g) std::cout << v << " "; |
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| 52 | // std::cout << std::endl; |
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| 53 | // std::cout << "Nodes in T:" << std::endl; |
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| 54 | // FOR_EACH_INC_LOC(Graph::ClassNodeIt, v, g, Graph::T_CLASS) std::cout << v << " "; |
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| 55 | // std::cout << std::endl; |
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| 56 | // std::cout << "Nodes in S:" << std::endl; |
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| 57 | // FOR_EACH_INC_LOC(Graph::ClassNodeIt, v, g, Graph::S_CLASS) std::cout << v << " "; |
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| 58 | // std::cout << std::endl; |
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[510] | 59 | |
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[512] | 60 | // std::cout << "Erasing the first node..." << std::endl; |
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| 61 | // NodeIt n; |
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| 62 | // g.first(n); |
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| 63 | // g.erase(n); |
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| 64 | // std::cout << "Nodes of the bipartite graph:" << std::endl; |
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| 65 | // FOR_EACH_GLOB(n, g) std::cout << n << " "; |
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| 66 | // std::cout << std::endl; |
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[510] | 67 | |
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[512] | 68 | // std::cout << "Nodes in T:" << std::endl; |
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| 69 | // FOR_EACH_INC_LOC(Graph::ClassNodeIt, v, g, Graph::T_CLASS) std::cout << v << " "; |
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| 70 | // std::cout << std::endl; |
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| 71 | // std::cout << "Nodes in S:" << std::endl; |
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| 72 | // FOR_EACH_INC_LOC(Graph::ClassNodeIt, v, g, Graph::S_CLASS) std::cout << v << " "; |
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| 73 | // std::cout << std::endl; |
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[510] | 74 | |
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| 75 | typedef stGraphWrapper<Graph> stGW; |
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| 76 | stGW stgw(g); |
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| 77 | ConstMap<stGW::Edge, int> const1map(1); |
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| 78 | |
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| 79 | Timer ts; |
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| 80 | ts.reset(); |
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| 81 | stGW::EdgeMap<int> flow(stgw); |
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| 82 | MaxFlow<stGW, int, ConstMap<stGW::Edge, int>, stGW::EdgeMap<int> > |
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| 83 | max_flow_test(stgw, stgw.S_NODE, stgw.T_NODE, const1map, flow); |
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| 84 | max_flow_test.run(); |
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| 85 | // while (max_flow_test.augmentOnShortestPath()) { } |
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| 86 | // typedef ListGraph MutableGraph; |
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| 87 | // while (max_flow_test.augmentOnBlockingFlow1<MutableGraph>()) { |
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| 88 | // while (max_flow_test.augmentOnBlockingFlow2()) { |
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| 89 | // std::cout << max_flow_test.flowValue() << std::endl; |
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| 90 | // } |
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| 91 | std::cout << "max flow value: " << max_flow_test.flowValue() << std::endl; |
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| 92 | std::cout << "elapsed time: " << ts << std::endl; |
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[512] | 93 | // FOR_EACH_LOC(stGW::EdgeIt, e, stgw) { |
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| 94 | // if (flow[e]) std::cout << e << std::endl; |
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| 95 | // } |
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[510] | 96 | std::cout << std::endl; |
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| 97 | |
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| 98 | typedef ConstMap<Graph::Edge, int> EdgeCap; |
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| 99 | EdgeCap ge1(1); |
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| 100 | typedef ConstMap<Graph::Node, int> NodeCap; |
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| 101 | NodeCap gn1(1); |
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| 102 | typedef Graph::EdgeMap<int> EdgeFlow; |
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| 103 | EdgeFlow gef(g); //0 |
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| 104 | typedef Graph::NodeMap<int> NodeFlow; |
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| 105 | NodeFlow gnf(g); //0 |
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| 106 | |
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| 107 | typedef stGraphWrapper<Graph>::EdgeMapWrapper<EdgeCap, NodeCap> CapMap; |
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| 108 | typedef stGraphWrapper<Graph>::EdgeMapWrapper<EdgeFlow, NodeFlow> FlowMap; |
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| 109 | CapMap cm(ge1, gn1); |
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| 110 | FlowMap fm(gef, gnf); |
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| 111 | |
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| 112 | //Timer ts; |
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| 113 | ts.reset(); |
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| 114 | //stGW::EdgeMap<int> flow(stgw); |
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| 115 | MaxFlow<stGW, int, CapMap, FlowMap> |
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| 116 | max_flow_test1(stgw, stgw.S_NODE, stgw.T_NODE, cm, fm); |
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| 117 | max_flow_test1.run(); |
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| 118 | // while (max_flow_test.augmentOnShortestPath()) { } |
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| 119 | // typedef ListGraph MutableGraph; |
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| 120 | // while (max_flow_test.augmentOnBlockingFlow1<MutableGraph>()) { |
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| 121 | // while (max_flow_test.augmentOnBlockingFlow2()) { |
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| 122 | // std::cout << max_flow_test.flowValue() << std::endl; |
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| 123 | // } |
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| 124 | std::cout << "max flow value: " << max_flow_test1.flowValue() << std::endl; |
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| 125 | std::cout << "elapsed time: " << ts << std::endl; |
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| 126 | // FOR_EACH_LOC(Graph::EdgeIt, e, g) { |
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| 127 | // if (gef[e]) std::cout << e << std::endl; |
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| 128 | // } |
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| 129 | std::cout << std::endl; |
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| 130 | |
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| 131 | ts.reset(); |
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| 132 | FOR_EACH_LOC(Graph::EdgeIt, e, g) gef.set(e, 0); |
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| 133 | FOR_EACH_LOC(Graph::NodeIt, n, g) gnf.set(n, 0); |
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[613] | 134 | MaxBipartiteMatching<Graph, ConstMap<Graph::Edge, int>, ConstMap<Graph::Node, int>, |
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[510] | 135 | Graph::EdgeMap<int>, Graph::NodeMap<int> > |
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| 136 | matching_test(g, ge1, gn1, gef, gnf); |
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| 137 | matching_test.run(); |
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| 138 | |
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| 139 | std::cout << "max flow value: " << matching_test.matchingValue() << std::endl; |
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| 140 | std::cout << "elapsed time: " << ts << std::endl; |
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| 141 | // FOR_EACH_LOC(Graph::EdgeIt, e, g) { |
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| 142 | // if (gef[e]) std::cout << e << std::endl; |
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| 143 | // } |
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| 144 | std::cout << std::endl; |
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[512] | 145 | |
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| 146 | ts.reset(); |
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| 147 | FOR_EACH_LOC(Graph::EdgeIt, e, g) gef.set(e, 0); |
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| 148 | //FOR_EACH_LOC(Graph::NodeIt, n, g) gnf.set(n, 0); |
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[613] | 149 | MaxBipartiteMatching<Graph, ConstMap<Graph::Edge, int>, ConstMap<Graph::Node, int>, |
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[512] | 150 | Graph::EdgeMap<int>, Graph::NodeMap<int> > |
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| 151 | matching_test_1(g, ge1, gn1, gef/*, gnf*/); |
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| 152 | matching_test_1.run(); |
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| 153 | |
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| 154 | std::cout << "max flow value: " << matching_test_1.matchingValue() << std::endl; |
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| 155 | std::cout << "elapsed time: " << ts << std::endl; |
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| 156 | // FOR_EACH_LOC(Graph::EdgeIt, e, g) { |
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| 157 | // if (gef[e]) std::cout << e << std::endl; |
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| 158 | // } |
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| 159 | std::cout << std::endl; |
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| 160 | |
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[510] | 161 | return 0; |
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| 162 | } |
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