1 | /* -*- C++ -*- |
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2 | * |
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3 | * This file is a part of LEMON, a generic C++ optimization library |
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4 | * |
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5 | * Copyright (C) 2003-2007 |
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6 | * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
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7 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
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8 | * |
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9 | * Permission to use, modify and distribute this software is granted |
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10 | * provided that this copyright notice appears in all copies. For |
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11 | * precise terms see the accompanying LICENSE file. |
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12 | * |
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13 | * This software is provided "AS IS" with no warranty of any kind, |
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14 | * express or implied, and with no claim as to its suitability for any |
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15 | * purpose. |
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16 | * |
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17 | */ |
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18 | |
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19 | #include <cstdlib> |
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20 | #include <iostream> |
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21 | #include <sstream> |
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22 | |
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23 | #include <lemon/smart_graph.h> |
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24 | #include <lemon/list_graph.h> |
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25 | |
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26 | #include <lemon/bpugraph_adaptor.h> |
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27 | #include <lemon/bipartite_matching.h> |
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28 | |
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29 | #include <lemon/graph_utils.h> |
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30 | #include <lemon/graph_to_eps.h> |
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31 | |
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32 | #include <lemon/time_measure.h> |
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33 | #include <lemon/random.h> |
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34 | |
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35 | using namespace std; |
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36 | using namespace lemon; |
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37 | |
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38 | typedef SmartBpUGraph Graph; |
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39 | typedef ListBpUGraph LGraph; |
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40 | BPUGRAPH_TYPEDEFS(Graph); |
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41 | |
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42 | |
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43 | int main() { |
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44 | |
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45 | for (int k = 1; k < 100; ++k) { |
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46 | |
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47 | int n = k * 100; |
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48 | int m = (100 - k) * 100; |
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49 | int e = 20000; |
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50 | int s = 100; |
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51 | |
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52 | Timer nt(false), st(false); |
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53 | Timer lnt(false), lst(false); |
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54 | |
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55 | for (int i = 0; i < s; ++i) { |
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56 | Graph graph; |
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57 | LGraph lgraph; |
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58 | vector<Node> aNodes; |
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59 | vector<Node> bNodes; |
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60 | vector<LGraph::Node> laNodes; |
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61 | vector<LGraph::Node> lbNodes; |
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62 | |
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63 | for (int j = 0; j < n; ++j) { |
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64 | Node node = graph.addANode(); |
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65 | aNodes.push_back(node); |
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66 | LGraph::Node lnode = lgraph.addANode(); |
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67 | laNodes.push_back(lnode); |
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68 | } |
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69 | for (int j = 0; j < m; ++j) { |
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70 | Node node = graph.addBNode(); |
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71 | bNodes.push_back(node); |
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72 | LGraph::Node lnode = lgraph.addBNode(); |
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73 | lbNodes.push_back(lnode); |
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74 | } |
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75 | for (int j = 0; j < e; ++j) { |
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76 | int a,b; |
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77 | Node aNode = aNodes[a=rnd[n]]; |
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78 | Node bNode = bNodes[b=rnd[m]]; |
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79 | graph.addEdge(aNode, bNode); |
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80 | LGraph::Node laNode = laNodes[a]; |
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81 | LGraph::Node lbNode = lbNodes[b]; |
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82 | lgraph.addEdge(laNode, lbNode); |
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83 | } |
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84 | |
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85 | { |
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86 | MaxBipartiteMatching<Graph> bpmatch(graph); |
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87 | |
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88 | nt.start(); |
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89 | bpmatch.init(); |
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90 | bpmatch.start(); |
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91 | nt.stop(); |
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92 | |
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93 | } |
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94 | |
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95 | { |
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96 | typedef SwapBpUGraphAdaptor<Graph> SGraph; |
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97 | SGraph sgraph(graph); |
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98 | MaxBipartiteMatching<SGraph> bpmatch(sgraph); |
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99 | |
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100 | st.start(); |
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101 | bpmatch.init(); |
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102 | bpmatch.start(); |
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103 | st.stop(); |
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104 | |
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105 | } |
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106 | { |
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107 | MaxBipartiteMatching<LGraph> bpmatch(lgraph); |
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108 | |
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109 | lnt.start(); |
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110 | bpmatch.init(); |
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111 | bpmatch.start(); |
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112 | lnt.stop(); |
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113 | |
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114 | } |
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115 | |
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116 | { |
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117 | typedef SwapBpUGraphAdaptor<LGraph> SGraph; |
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118 | SGraph sgraph(lgraph); |
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119 | MaxBipartiteMatching<SGraph> bpmatch(sgraph); |
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120 | |
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121 | lst.start(); |
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122 | bpmatch.init(); |
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123 | bpmatch.start(); |
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124 | lst.stop(); |
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125 | |
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126 | } |
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127 | } |
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128 | |
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129 | cout << k * 100 << ' ' << nt.realTime() << ' ' << st.realTime() |
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130 | << ' ' << lnt.realTime() << ' ' << lst.realTime()<< endl; |
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131 | |
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132 | } |
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133 | |
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134 | return 0; |
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135 | } |
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