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<a href="presolve_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">// Copyright 2010-2021 Google LLC</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment">// Licensed under the Apache License, Version 2.0 (the &quot;License&quot;);</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment">// you may not use this file except in compliance with the License.</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment">// You may obtain a copy of the License at</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment">//</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment">//</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment">// distributed under the License is distributed on an &quot;AS IS&quot; BASIS,</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment">// See the License for the specific language governing permissions and</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment">// limitations under the License.</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> </div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="preprocessor">#ifndef OR_TOOLS_FLATZINC_PRESOLVE_H_</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="preprocessor">#define OR_TOOLS_FLATZINC_PRESOLVE_H_</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span> </div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#include &lt;cstdint&gt;</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#include &lt;functional&gt;</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="preprocessor">#include &lt;string&gt;</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> </div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#include &quot;absl/container/flat_hash_map.h&quot;</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#include &quot;absl/container/flat_hash_set.h&quot;</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor">#include &quot;absl/strings/match.h&quot;</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="preprocessor">#include &quot;<a class="code" href="hash_8h.html">ortools/base/hash.h</a>&quot;</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#include &quot;<a class="code" href="integral__types_8h.html">ortools/base/integral_types.h</a>&quot;</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="preprocessor">#include &quot;<a class="code" href="base_2logging_8h.html">ortools/base/logging.h</a>&quot;</span></div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#include &quot;<a class="code" href="flatzinc_2model_8h.html">ortools/flatzinc/model.h</a>&quot;</span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#include &quot;<a class="code" href="util_2logging_8h.html">ortools/util/logging.h</a>&quot;</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> </div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceoperations__research.html">operations_research</a> {</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="keyword">namespace </span>fz {</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="comment">// The Presolver &quot;pre-solves&quot; a Model by applying some iterative</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="comment">// transformations to it, which may simplify and/or shrink the model.</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="comment">//</span></div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="comment">// TODO(user): Error reporting of unfeasible models.</span></div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"><a class="line" href="classoperations__research_1_1fz_1_1_presolver.html"> 36</a></span><span class="keyword">class </span><a class="code hl_class" href="classoperations__research_1_1fz_1_1_presolver.html">Presolver</a> {</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"><a class="line" href="classoperations__research_1_1fz_1_1_presolver.html#a47389831c683985a835376070d358d59"> 38</a></span> <span class="keyword">explicit</span> <a class="code hl_function" href="classoperations__research_1_1fz_1_1_presolver.html#a47389831c683985a835376070d358d59">Presolver</a>(<a class="code hl_class" href="classoperations__research_1_1_solver_logger.html">SolverLogger</a>* logger) : logger_(logger) {}</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> <span class="comment">// Recursively apply all the pre-solve rules to the model, until exhaustion.</span></div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> <span class="comment">// The reduced model will:</span></div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> <span class="comment">// - Have some unused variables.</span></div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> <span class="comment">// - Have some unused constraints (marked as inactive).</span></div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> <span class="comment">// - Have some modified constraints (for example, they will no longer</span></div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> <span class="comment">// refer to unused variables).</span></div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1fz_1_1_presolver.html#a960560379eec069d2062a118b0b9868d">Run</a>(<a class="code hl_class" href="classoperations__research_1_1fz_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> </div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="comment">// This struct stores the affine mapping of one variable:</span></div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <span class="comment">// it represents new_var = var * coefficient + offset. It also stores the</span></div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <span class="comment">// constraint that defines this mapping.</span></div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="keyword">struct </span>AffineMapping {</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <a class="code hl_struct" href="structoperations__research_1_1fz_1_1_variable.html">Variable</a>* variable;</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> int64_t <a class="code hl_variable" href="routing__filters_8cc.html#a8e4ee19dee0e00541dbe9bbc83d806ba">coefficient</a>;</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> int64_t offset;</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <a class="code hl_struct" href="structoperations__research_1_1fz_1_1_constraint.html">Constraint</a>* constraint;</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> </div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> AffineMapping()</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> : variable(nullptr), <a class="code hl_variable" href="routing__filters_8cc.html#a8e4ee19dee0e00541dbe9bbc83d806ba">coefficient</a>(0), offset(0), constraint(nullptr) {}</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> AffineMapping(Variable* v, int64_t c, int64_t o, <a class="code hl_class" href="classoperations__research_1_1_constraint.html">Constraint</a>* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>)</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> : variable(v), <a class="code hl_variable" href="routing__filters_8cc.html#a8e4ee19dee0e00541dbe9bbc83d806ba">coefficient</a>(c), offset(o), constraint(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>) {}</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> };</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> </div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> <span class="comment">// This struct stores the mapping of two index variables (of a 2D array; not</span></div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> <span class="comment">// included here) onto a single index variable (of the flattened 1D array).</span></div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="comment">// The original 2D array could be trimmed in the process; so we also need an</span></div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="comment">// offset.</span></div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> <span class="comment">// Eg. new_index_var = index_var1 * int_coeff + index_var2 + int_offset</span></div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> <span class="keyword">struct </span>Array2DIndexMapping {</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> Variable* variable1;</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> int64_t <a class="code hl_variable" href="routing__filters_8cc.html#a8e4ee19dee0e00541dbe9bbc83d806ba">coefficient</a>;</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> Variable* variable2;</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> int64_t offset;</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> Constraint* constraint;</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> </div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> Array2DIndexMapping()</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> : variable1(nullptr),</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> <a class="code hl_variable" href="routing__filters_8cc.html#a8e4ee19dee0e00541dbe9bbc83d806ba">coefficient</a>(0),</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> variable2(nullptr),</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> offset(0),</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> constraint(nullptr) {}</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> Array2DIndexMapping(Variable* v1, int64_t c, Variable* v2, int64_t o,</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> Constraint* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>)</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> : variable1(v1),</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> <a class="code hl_variable" href="routing__filters_8cc.html#a8e4ee19dee0e00541dbe9bbc83d806ba">coefficient</a>(c),</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> variable2(v2),</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> offset(o),</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> constraint(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>) {}</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> };</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> </div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <span class="comment">// Substitution support.</span></div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <span class="keywordtype">void</span> SubstituteEverywhere(Model* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <span class="keywordtype">void</span> SubstituteAnnotation(Annotation* ann);</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> </div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="comment">// Presolve rules.</span></div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="keywordtype">void</span> PresolveBool2Int(Constraint* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> <span class="keywordtype">void</span> PresolveStoreAffineMapping(Constraint* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <span class="keywordtype">void</span> PresolveStoreFlatteningMapping(Constraint* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keywordtype">void</span> PresolveSimplifyElement(Constraint* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> <span class="keywordtype">void</span> PresolveSimplifyExprElement(Constraint* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> </div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> <span class="comment">// Helpers.</span></div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <span class="keywordtype">void</span> UpdateRuleStats(<span class="keyword">const</span> std::string&amp; rule_name) {</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> successful_rules_[rule_name]++;</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> }</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> </div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <span class="comment">// The presolver will discover some equivalence classes of variables [two</span></div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <span class="comment">// variable are equivalent when replacing one by the other leads to the same</span></div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> <span class="comment">// logical model]. We will store them here, using a Union-find data structure.</span></div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> <span class="comment">// See http://en.wikipedia.org/wiki/Disjoint-set_data_structure.</span></div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <span class="comment">// Note that the equivalence is directed. We prefer to replace all instances</span></div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> <span class="comment">// of &#39;from&#39; with &#39;to&#39;, rather than the opposite.</span></div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> <span class="keywordtype">void</span> AddVariableSubstitution(Variable* from, Variable* to);</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> Variable* FindRepresentativeOfVar(Variable* <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> absl::flat_hash_map&lt;const Variable*, Variable*&gt; var_representative_map_;</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> std::vector&lt;Variable*&gt; var_representative_vector_;</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> </div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> <span class="comment">// Stores affine_map_[x] = a * y + b.</span></div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> absl::flat_hash_map&lt;const Variable*, AffineMapping&gt; affine_map_;</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> </div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> <span class="comment">// Stores array2d_index_map_[z] = a * x + y + b.</span></div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> absl::flat_hash_map&lt;const Variable*, Array2DIndexMapping&gt; array2d_index_map_;</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> </div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <span class="comment">// Count applications of presolve rules. Use a sorted map for reporting</span></div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> <span class="comment">// purposes.</span></div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> std::map&lt;std::string, int&gt; successful_rules_;</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> </div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> SolverLogger* logger_;</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span>};</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span>} <span class="comment">// namespace fz</span></div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span>} <span class="comment">// namespace operations_research</span></div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> </div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span><span class="preprocessor">#endif </span><span class="comment">// OR_TOOLS_FLATZINC_PRESOLVE_H_</span></div>
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<div class="ttc" id="aclassoperations__research_1_1_constraint_html"><div class="ttname"><a href="classoperations__research_1_1_constraint.html">operations_research::Constraint</a></div><div class="ttdoc">A constraint is the main modeling object.</div><div class="ttdef"><b>Definition:</b> <a href="constraint__solver_8h_source.html#l03626">constraint_solver.h:3626</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1fz_1_1_model_html"><div class="ttname"><a href="classoperations__research_1_1fz_1_1_model.html">operations_research::fz::Model</a></div><div class="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8h_source.html#l00338">flatzinc/model.h:338</a></div></div>
<div class="ttc" id="aclassoperations__research_1_1fz_1_1_presolver_html"><div class="ttname"><a href="classoperations__research_1_1fz_1_1_presolver.html">operations_research::fz::Presolver</a></div><div class="ttdef"><b>Definition:</b> <a href="presolve_8h_source.html#l00036">presolve.h:36</a></div></div>
<div class="ttc" id="aclassoperations__research_1_1fz_1_1_presolver_html_a47389831c683985a835376070d358d59"><div class="ttname"><a href="classoperations__research_1_1fz_1_1_presolver.html#a47389831c683985a835376070d358d59">operations_research::fz::Presolver::Presolver</a></div><div class="ttdeci">Presolver(SolverLogger *logger)</div><div class="ttdef"><b>Definition:</b> <a href="presolve_8h_source.html#l00038">presolve.h:38</a></div></div>
<div class="ttc" id="aclassoperations__research_1_1fz_1_1_presolver_html_a960560379eec069d2062a118b0b9868d"><div class="ttname"><a href="classoperations__research_1_1fz_1_1_presolver.html#a960560379eec069d2062a118b0b9868d">operations_research::fz::Presolver::Run</a></div><div class="ttdeci">void Run(Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="presolve_8cc_source.html#l00367">presolve.cc:367</a></div></div>
<div class="ttc" id="ademon__profiler_8cc_html_a05da18ca9c7b657a4a6ea24e07c9b695"><div class="ttname"><a href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a></div><div class="ttdeci">const Constraint * ct</div><div class="ttdef"><b>Definition:</b> <a href="demon__profiler_8cc_source.html#l00043">demon_profiler.cc:43</a></div></div>
<div class="ttc" id="aexpr__array_8cc_html_a472a99923cbe11ae7b5a5d157d9ad465"><div class="ttname"><a href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a></div><div class="ttdeci">IntVar * var</div><div class="ttdef"><b>Definition:</b> <a href="expr__array_8cc_source.html#l01874">expr_array.cc:1874</a></div></div>
<div class="ttc" id="aflatzinc_2model_8h_html"><div class="ttname"><a href="flatzinc_2model_8h.html">model.h</a></div></div>
<div class="ttc" id="agurobi__interface_8cc_html_a0728f23c9a47655d38e0bf1a2f200bcf"><div class="ttname"><a href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a></div><div class="ttdeci">GRBmodel * model</div><div class="ttdef"><b>Definition:</b> <a href="gurobi__interface_8cc_source.html#l00274">gurobi_interface.cc:274</a></div></div>
<div class="ttc" id="ahash_8h_html"><div class="ttname"><a href="hash_8h.html">hash.h</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_html"><div class="ttname"><a href="namespaceoperations__research.html">operations_research</a></div><div class="ttdoc">Collection of objects used to extend the Constraint Solver library.</div><div class="ttdef"><b>Definition:</b> <a href="dense__doubly__linked__list_8h_source.html#l00021">dense_doubly_linked_list.h:21</a></div></div>
<div class="ttc" id="arouting__filters_8cc_html_a8e4ee19dee0e00541dbe9bbc83d806ba"><div class="ttname"><a href="routing__filters_8cc.html#a8e4ee19dee0e00541dbe9bbc83d806ba">coefficient</a></div><div class="ttdeci">int64_t coefficient</div><div class="ttdef"><b>Definition:</b> <a href="routing__filters_8cc_source.html#l00969">routing_filters.cc:969</a></div></div>
<div class="ttc" id="astructoperations__research_1_1fz_1_1_constraint_html"><div class="ttname"><a href="structoperations__research_1_1fz_1_1_constraint.html">operations_research::fz::Constraint</a></div><div class="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8h_source.html#l00219">flatzinc/model.h:219</a></div></div>
<div class="ttc" id="astructoperations__research_1_1fz_1_1_variable_html"><div class="ttname"><a href="structoperations__research_1_1fz_1_1_variable.html">operations_research::fz::Variable</a></div><div class="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8h_source.html#l00120">flatzinc/model.h:120</a></div></div>
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