1 | /* -*- mode: C++; indent-tabs-mode: nil; -*- |
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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) 2003-2010 |
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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 <sstream> |
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20 | #include <lemon/list_graph.h> |
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21 | #include <lemon/full_graph.h> |
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22 | #include <lemon/grid_graph.h> |
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23 | #include <lemon/lgf_reader.h> |
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24 | #include <lemon/grosso_locatelli_pullan_mc.h> |
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25 | |
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26 | #include "test_tools.h" |
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27 | |
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28 | using namespace lemon; |
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29 | |
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30 | char test_lgf[] = |
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31 | "@nodes\n" |
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32 | "label max_clique\n" |
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33 | "1 0\n" |
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34 | "2 0\n" |
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35 | "3 0\n" |
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36 | "4 1\n" |
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37 | "5 1\n" |
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38 | "6 1\n" |
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39 | "7 1\n" |
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40 | "@edges\n" |
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41 | " label\n" |
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42 | "1 2 1\n" |
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43 | "1 3 2\n" |
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44 | "1 4 3\n" |
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45 | "1 6 4\n" |
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46 | "2 3 5\n" |
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47 | "2 5 6\n" |
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48 | "2 7 7\n" |
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49 | "3 4 8\n" |
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50 | "3 5 9\n" |
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51 | "4 5 10\n" |
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52 | "4 6 11\n" |
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53 | "4 7 12\n" |
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54 | "5 6 13\n" |
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55 | "5 7 14\n" |
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56 | "6 7 15\n"; |
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57 | |
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58 | |
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59 | // Check with general graphs |
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60 | template <typename Param> |
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61 | void checkMaxCliqueGeneral(Param rule) { |
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62 | typedef ListGraph GR; |
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63 | typedef GrossoLocatelliPullanMc<GR> McAlg; |
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64 | typedef McAlg::CliqueNodeIt CliqueIt; |
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65 | |
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66 | // Basic tests |
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67 | { |
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68 | GR g; |
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69 | GR::NodeMap<bool> map(g); |
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70 | McAlg mc(g); |
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71 | mc.iterationLimit(50); |
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72 | check(mc.run(rule) == McAlg::SIZE_LIMIT, "Wrong termination cause"); |
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73 | check(mc.cliqueSize() == 0, "Wrong clique size"); |
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74 | check(CliqueIt(mc) == INVALID, "Wrong CliqueNodeIt"); |
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75 | |
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76 | GR::Node u = g.addNode(); |
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77 | check(mc.run(rule) == McAlg::SIZE_LIMIT, "Wrong termination cause"); |
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78 | check(mc.cliqueSize() == 1, "Wrong clique size"); |
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79 | mc.cliqueMap(map); |
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80 | check(map[u], "Wrong clique map"); |
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81 | CliqueIt it1(mc); |
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82 | check(static_cast<GR::Node>(it1) == u && ++it1 == INVALID, |
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83 | "Wrong CliqueNodeIt"); |
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84 | |
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85 | GR::Node v = g.addNode(); |
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86 | check(mc.run(rule) == McAlg::ITERATION_LIMIT, "Wrong termination cause"); |
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87 | check(mc.cliqueSize() == 1, "Wrong clique size"); |
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88 | mc.cliqueMap(map); |
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89 | check((map[u] && !map[v]) || (map[v] && !map[u]), "Wrong clique map"); |
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90 | CliqueIt it2(mc); |
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91 | check(it2 != INVALID && ++it2 == INVALID, "Wrong CliqueNodeIt"); |
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92 | |
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93 | g.addEdge(u, v); |
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94 | check(mc.run(rule) == McAlg::SIZE_LIMIT, "Wrong termination cause"); |
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95 | check(mc.cliqueSize() == 2, "Wrong clique size"); |
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96 | mc.cliqueMap(map); |
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97 | check(map[u] && map[v], "Wrong clique map"); |
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98 | CliqueIt it3(mc); |
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99 | check(it3 != INVALID && ++it3 != INVALID && ++it3 == INVALID, |
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100 | "Wrong CliqueNodeIt"); |
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101 | } |
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102 | |
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103 | // Test graph |
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104 | { |
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105 | GR g; |
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106 | GR::NodeMap<bool> max_clique(g); |
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107 | GR::NodeMap<bool> map(g); |
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108 | std::istringstream input(test_lgf); |
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109 | graphReader(g, input) |
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110 | .nodeMap("max_clique", max_clique) |
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111 | .run(); |
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112 | |
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113 | McAlg mc(g); |
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114 | mc.iterationLimit(50); |
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115 | check(mc.run(rule) == McAlg::ITERATION_LIMIT, "Wrong termination cause"); |
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116 | check(mc.cliqueSize() == 4, "Wrong clique size"); |
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117 | mc.cliqueMap(map); |
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118 | for (GR::NodeIt n(g); n != INVALID; ++n) { |
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119 | check(map[n] == max_clique[n], "Wrong clique map"); |
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120 | } |
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121 | int cnt = 0; |
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122 | for (CliqueIt n(mc); n != INVALID; ++n) { |
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123 | cnt++; |
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124 | check(map[n] && max_clique[n], "Wrong CliqueNodeIt"); |
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125 | } |
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126 | check(cnt == 4, "Wrong CliqueNodeIt"); |
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127 | } |
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128 | } |
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129 | |
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130 | // Check with full graphs |
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131 | template <typename Param> |
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132 | void checkMaxCliqueFullGraph(Param rule) { |
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133 | typedef FullGraph GR; |
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134 | typedef GrossoLocatelliPullanMc<FullGraph> McAlg; |
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135 | typedef McAlg::CliqueNodeIt CliqueIt; |
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136 | |
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137 | for (int size = 0; size <= 40; size = size * 3 + 1) { |
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138 | GR g(size); |
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139 | GR::NodeMap<bool> map(g); |
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140 | McAlg mc(g); |
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141 | check(mc.run(rule) == McAlg::SIZE_LIMIT, "Wrong termination cause"); |
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142 | check(mc.cliqueSize() == size, "Wrong clique size"); |
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143 | mc.cliqueMap(map); |
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144 | for (GR::NodeIt n(g); n != INVALID; ++n) { |
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145 | check(map[n], "Wrong clique map"); |
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146 | } |
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147 | int cnt = 0; |
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148 | for (CliqueIt n(mc); n != INVALID; ++n) cnt++; |
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149 | check(cnt == size, "Wrong CliqueNodeIt"); |
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150 | } |
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151 | } |
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152 | |
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153 | // Check with grid graphs |
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154 | template <typename Param> |
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155 | void checkMaxCliqueGridGraph(Param rule) { |
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156 | GridGraph g(5, 7); |
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157 | GridGraph::NodeMap<char> map(g); |
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158 | GrossoLocatelliPullanMc<GridGraph> mc(g); |
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159 | |
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160 | mc.iterationLimit(100); |
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161 | check(mc.run(rule) == mc.ITERATION_LIMIT, "Wrong termination cause"); |
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162 | check(mc.cliqueSize() == 2, "Wrong clique size"); |
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163 | |
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164 | mc.stepLimit(100); |
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165 | check(mc.run(rule) == mc.STEP_LIMIT, "Wrong termination cause"); |
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166 | check(mc.cliqueSize() == 2, "Wrong clique size"); |
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167 | |
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168 | mc.sizeLimit(2); |
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169 | check(mc.run(rule) == mc.SIZE_LIMIT, "Wrong termination cause"); |
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170 | check(mc.cliqueSize() == 2, "Wrong clique size"); |
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171 | } |
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172 | |
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173 | |
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174 | int main() { |
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175 | checkMaxCliqueGeneral(GrossoLocatelliPullanMc<ListGraph>::RANDOM); |
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176 | checkMaxCliqueGeneral(GrossoLocatelliPullanMc<ListGraph>::DEGREE_BASED); |
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177 | checkMaxCliqueGeneral(GrossoLocatelliPullanMc<ListGraph>::PENALTY_BASED); |
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178 | |
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179 | checkMaxCliqueFullGraph(GrossoLocatelliPullanMc<FullGraph>::RANDOM); |
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180 | checkMaxCliqueFullGraph(GrossoLocatelliPullanMc<FullGraph>::DEGREE_BASED); |
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181 | checkMaxCliqueFullGraph(GrossoLocatelliPullanMc<FullGraph>::PENALTY_BASED); |
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182 | |
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183 | checkMaxCliqueGridGraph(GrossoLocatelliPullanMc<GridGraph>::RANDOM); |
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184 | checkMaxCliqueGridGraph(GrossoLocatelliPullanMc<GridGraph>::DEGREE_BASED); |
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185 | checkMaxCliqueGridGraph(GrossoLocatelliPullanMc<GridGraph>::PENALTY_BASED); |
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186 | |
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187 | return 0; |
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188 | } |
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