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1 #include <iostream> |
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2 #include <vector> |
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3 #include <string> |
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4 |
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5 #include <list_graph.h> |
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6 #include <edmonds.h> |
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7 |
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8 using namespace hugo; |
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9 |
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10 int main (int, char*[]) |
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11 { |
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12 typedef ListGraph::NodeIt NodeIt; |
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13 typedef ListGraph::EdgeIt EdgeIt; |
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14 typedef ListGraph::Node Node; |
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15 typedef ListGraph::Edge Edge; |
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16 typedef ListGraph::OutEdgeIt OutEdgeIt; |
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17 typedef ListGraph::InEdgeIt InEdgeIt; |
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18 |
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19 ListGraph flow_test; |
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20 |
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21 /* //Ahuja könyv példája, maxflowvalue=13*/ |
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22 Node s=flow_test.addNode(); |
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23 Node v1=flow_test.addNode(); |
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24 Node v2=flow_test.addNode(); |
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25 Node v3=flow_test.addNode(); |
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26 Node v4=flow_test.addNode(); |
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27 Node v5=flow_test.addNode(); |
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28 Node t=flow_test.addNode(); |
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29 |
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30 ListGraph::NodeMap<std::string> Node_name(flow_test); |
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31 Node_name.set(s, "s"); |
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32 Node_name.set(v1, "v1"); |
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33 Node_name.set(v2, "v2"); |
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34 Node_name.set(v3, "v3"); |
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35 Node_name.set(v4, "v4"); |
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36 Node_name.set(v5, "v5"); |
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37 Node_name.set(t, "t"); |
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38 |
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39 Edge s_v1=flow_test.addEdge(s, v1); |
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40 Edge s_v2=flow_test.addEdge(s, v2); |
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41 Edge s_v3=flow_test.addEdge(s, v3); |
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42 Edge v2_v4=flow_test.addEdge(v2, v4); |
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43 Edge v2_v5=flow_test.addEdge(v2, v5); |
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44 Edge v3_v5=flow_test.addEdge(v3, v5); |
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45 Edge v4_t=flow_test.addEdge(v4, t); |
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46 Edge v5_t=flow_test.addEdge(v5, t); |
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47 Edge v2_s=flow_test.addEdge(v2, s); |
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48 |
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49 ListGraph::EdgeMap<int> cap(flow_test); |
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50 cap.set(s_v1, 0); |
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51 cap.set(s_v2, 10); |
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52 cap.set(s_v3, 10); |
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53 cap.set(v2_v4, 5); |
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54 cap.set(v2_v5, 8); |
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55 cap.set(v3_v5, 5); |
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56 cap.set(v4_t, 8); |
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57 cap.set(v5_t, 8); |
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58 cap.set(v2_s, 0); |
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59 |
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60 |
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61 Edmonds<ListGraph> edmonds(flow_test); |
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62 std::vector<Edge> matching(0); |
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63 std::cout<< edmonds.run(matching); |
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64 |
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65 |
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66 /* //Marci példája, maxflowvalue=23 |
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67 Node s=flow_test.addNode(); |
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68 Node v1=flow_test.addNode(); |
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69 Node v2=flow_test.addNode(); |
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70 Node v3=flow_test.addNode(); |
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71 Node v4=flow_test.addNode(); |
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72 Node t=flow_test.addNode(); |
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73 Node z=flow_test.addNode(); |
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74 |
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75 |
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76 ListGraph::NodeMap<std::string> Node_name(flow_test); |
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77 Node_name.set(s, "s"); |
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78 Node_name.set(v1, "v1"); |
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79 Node_name.set(v2, "v2"); |
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80 Node_name.set(v3, "v3"); |
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81 Node_name.set(v4, "v4"); |
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82 Node_name.set(t, "t"); |
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83 Node_name.set(z, "z"); |
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84 |
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85 Edge s_v1=flow_test.addEdge(s, v1); |
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86 Edge s_v2=flow_test.addEdge(s, v2); |
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87 Edge v1_v2=flow_test.addEdge(v1, v2); |
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88 Edge v2_v1=flow_test.addEdge(v2, v1); |
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89 Edge v1_v3=flow_test.addEdge(v1, v3); |
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90 Edge v3_v2=flow_test.addEdge(v3, v2); |
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91 Edge v2_v4=flow_test.addEdge(v2, v4); |
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92 Edge v4_v3=flow_test.addEdge(v4, v3); |
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93 Edge v3_t=flow_test.addEdge(v3, t); |
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94 Edge v4_t=flow_test.addEdge(v4, t); |
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95 Edge v3_v3=flow_test.addEdge(v3, v3); |
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96 Edge s_z=flow_test.addEdge(s, z); |
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97 // Edge v2_s=flow_test.addEdge(v2, s); |
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98 |
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99 |
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100 |
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101 ListGraph::EdgeMap<int> cap(flow_test); |
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102 cap.set(s_v1, 16); |
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103 cap.set(s_v2, 13); |
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104 cap.set(v1_v2, 10); |
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105 cap.set(v2_v1, 4); |
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106 cap.set(v1_v3, 12); |
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107 cap.set(v3_v2, 9); |
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108 cap.set(v2_v4, 14); |
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109 cap.set(v4_v3, 7); |
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110 cap.set(v3_t, 20); |
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111 cap.set(v4_t, 4); |
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112 cap.set(v3_v3, 4); |
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113 cap.set(s_z, 4); |
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114 // cap.set(v2_s, 0); |
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115 |
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116 */ |
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117 |
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118 //pelda 3, maxflowvalue=4 |
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119 /* Node s=flow_test.addNode(); |
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120 Node v1=flow_test.addNode(); |
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121 Node v2=flow_test.addNode(); |
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122 Node t=flow_test.addNode(); |
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123 Node w=flow_test.addNode(); |
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124 |
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125 NodeMap<ListGraph, std::string> Node_name(flow_test); |
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126 Node_name.set(s, "s"); |
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127 Node_name.set(v1, "v1"); |
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128 Node_name.set(v2, "v2"); |
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129 Node_name.set(t, "t"); |
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130 Node_name.set(w, "w"); |
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131 |
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132 Edge s_v1=flow_test.addEdge(s, v1); |
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133 Edge v1_v2=flow_test.addEdge(v1, v2); |
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134 Edge v2_t=flow_test.addEdge(v2, t); |
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135 Edge v1_v1=flow_test.addEdge(v1, v1); |
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136 Edge s_w=flow_test.addEdge(s, w); |
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137 |
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138 |
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139 EdgeMap<ListGraph, int> cap(flow_test); |
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140 |
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141 cap.set(s_v1, 16); |
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142 cap.set(v1_v2, 10); |
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143 cap.set(v2_t, 4); |
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144 cap.set(v1_v1, 3); |
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145 cap.set(s_w, 5); |
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146 */ |
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147 |
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148 |
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149 |
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150 /* |
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151 std::cout << "Testing reverse_bfs..." << std::endl; |
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152 |
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153 reverse_bfs<ListGraph> bfs_test(flow_test, t); |
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154 |
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155 bfs_test.run(); |
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156 |
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157 for (EachNodeIt w=flow_test.first_Node(); w.valid(); ++w) { |
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158 std::cout <<"The distance of " << w << " is " << bfs_test.dist(w) <<std::endl; |
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159 } |
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160 |
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161 */ |
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162 |
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163 |
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164 /* |
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165 std::cout << "Testing preflow_push_hl..." << std::endl; |
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166 |
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167 preflow_push_hl<ListGraph, int> preflow_push_test(flow_test, s, t, cap); |
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168 |
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169 preflow_push_test.run(); |
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170 |
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171 std::cout << "Maximum flow value is: " << preflow_push_test.maxflow() << "."<<std::endl; |
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172 |
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173 std::cout<< "The flow on Edge s-v1 is "<< preflow_push_test.flowonEdge(s_v1) << "."<<std::endl; |
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174 |
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175 ListGraph::EdgeMap<int> flow=preflow_push_test.allflow(); |
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176 for (EachEdgeIt e=flow_test.template first<EachEdgeIt>(); e.valid(); ++e) { |
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177 std::cout <<"Flow on Edge " << flow_test.tail(e) <<"-" << flow_test.head(e)<< " is " <<flow.get(e) <<std::endl; |
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178 } |
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179 |
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180 std::cout << "A minimum cut: " <<std::endl; |
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181 ListGraph::NodeMap<bool> mincut=preflow_push_test.mincut(); |
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182 |
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183 for (EachNodeIt v=flow_test.template first<EachNodeIt>(); v.valid(); ++v) { |
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184 if (mincut.get(v)) std::cout <<Node_name.get(v)<< " "; |
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185 } |
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186 |
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187 std::cout<<"\n\n"<<std::endl; |
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188 |
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189 |
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190 |
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191 |
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192 std::cout << "Testing preflow_push_max_flow..." << std::endl; |
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193 |
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194 preflow_push_max_flow<ListGraph, int> max_flow_test(flow_test, s, t, cap); |
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195 |
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196 max_flow_test.run(); |
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197 |
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198 std::cout << "Maximum flow value is: " << max_flow_test.maxflow() << "."<< std::endl; |
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199 |
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200 std::cout << "A minimum cut: " <<std::endl; |
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201 ListGraph::NodeMap<bool> mincut2=max_flow_test.mincut(); |
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202 |
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203 for (EachNodeIt v=flow_test.template first<EachNodeIt>(); v.valid(); ++v) { |
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204 if (mincut2.get(v)) std::cout <<Node_name.get(v)<< " "; |
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205 } |
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206 |
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207 std::cout << std::endl <<std::endl; |
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208 */ |
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209 |
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210 return 0; |
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211 } |
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212 |
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213 |
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220 |