397 lines
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397 lines
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<a href="proto__converter_8cc.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>
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<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 "License");</span></div>
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<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>
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<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>
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<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment">//</span></div>
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<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>
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<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment">//</span></div>
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<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>
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<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 "AS IS" BASIS,</span></div>
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<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>
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<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>
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment">// limitations under the License.</span></div>
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> </div>
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<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="preprocessor">#include "<a class="code" href="proto__converter_8h.html">ortools/math_opt/io/proto_converter.h</a>"</span></div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> </div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#include <algorithm></span></div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#include <cstdint></span></div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#include <string></span></div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="preprocessor">#include <utility></span></div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#include <vector></span></div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> </div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#include "<a class="code" href="integral__types_8h.html">ortools/base/integral_types.h</a>"</span></div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor">#include "absl/container/flat_hash_map.h"</span></div>
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<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="preprocessor">#include "absl/status/status.h"</span></div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#include "absl/status/statusor.h"</span></div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="preprocessor">#include "<a class="code" href="linear__solver_8pb_8h.html">ortools/linear_solver/linear_solver.pb.h</a>"</span></div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#include "<a class="code" href="linear__solver_2model__validator_8h.html">ortools/linear_solver/model_validator.h</a>"</span></div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#include "<a class="code" href="math__opt__proto__utils_8h.html">ortools/math_opt/core/math_opt_proto_utils.h</a>"</span></div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="preprocessor">#include "<a class="code" href="sparse__vector__view_8h.html">ortools/math_opt/core/sparse_vector_view.h</a>"</span></div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="preprocessor">#include "ortools/math_opt/model.pb.h"</span></div>
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<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="preprocessor">#include "ortools/math_opt/sparse_containers.pb.h"</span></div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="preprocessor">#include "<a class="code" href="math__opt_2validators_2model__validator_8h.html">ortools/math_opt/validators/model_validator.h</a>"</span></div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="preprocessor">#include "<a class="code" href="status__macros_8h.html">ortools/base/status_macros.h</a>"</span></div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> </div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceoperations__research.html">operations_research</a> {</div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span><span class="keyword">namespace </span>math_opt {</div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span><span class="keyword">namespace </span>{</div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> </div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span>absl::Status IsSupported(<span class="keyword">const</span> MPModelProto& <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> std::string validity_string = <a class="code hl_function" href="namespaceoperations__research.html#aa964b4fd4cba1119c722a85bea947d05">FindErrorInMPModelProto</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> <span class="keywordflow">if</span> (validity_string.length() > 0) {</div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> <span class="keywordflow">return</span> absl::InvalidArgumentError(validity_string);</div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> }</div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.general_constraint_size() > 0) {</div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <span class="keywordflow">return</span> absl::InvalidArgumentError(<span class="stringliteral">"General constraints are not supported"</span>);</div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> }</div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.quadratic_objective().coefficient_size() > 0) {</div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="keywordflow">return</span> absl::InvalidArgumentError(<span class="stringliteral">"Quadratic objectives not supported"</span>);</div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> }</div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.solution_hint().var_index_size() > 0) {</div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="keywordflow">return</span> absl::InvalidArgumentError(<span class="stringliteral">"Solution Hint not supported"</span>);</div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> }</div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <span class="keywordflow">return</span> absl::OkStatus();</div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span>}</div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> </div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span>absl::Status IsSupported(<span class="keyword">const</span> math_opt::ModelProto& <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceoperations__research_1_1math__opt.html#af039565f98410c47887cc13d5dbdd31b">ValidateModel</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span>}</div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> </div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span><span class="keywordtype">bool</span> AnyVarNamed(<span class="keyword">const</span> MPModelProto& <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> MPVariableProto& <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> : <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.variable()) {</div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>.name().length() > 0) {</div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> }</div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> }</div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span>}</div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> </div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span><span class="keywordtype">bool</span> AnyConstraintNamed(<span class="keyword">const</span> MPModelProto& <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
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<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> MPConstraintProto& constraint : <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.constraint()) {</div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> <span class="keywordflow">if</span> (constraint.name().length() > 0) {</div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> }</div>
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<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> }</div>
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<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span>}</div>
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<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> </div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span>} <span class="comment">// namespace</span></div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> </div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span>absl::StatusOr<::operations_research::math_opt::ModelProto></div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1math__opt.html#a9e2a71c5e9609cac6791082f11176b45"> 81</a></span><a class="code hl_function" href="namespaceoperations__research_1_1math__opt.html#a9e2a71c5e9609cac6791082f11176b45">MPModelProtoToMathOptModel</a>(const ::operations_research::MPModelProto& <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> <a class="code hl_define" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(IsSupported(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>));</div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> </div>
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<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> ModelProto output;</div>
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<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> output.set_name(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.name());</div>
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<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> </div>
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<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> math_opt::VariablesProto* <span class="keyword">const</span> vars = output.mutable_variables();</div>
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<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> <span class="keywordtype">int</span> objective_non_zeros = 0;</div>
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<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_vars = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.variable_size();</div>
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<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> vars_have_name = AnyVarNamed(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> vars->mutable_lower_bounds()->Reserve(num_vars);</div>
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<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> vars->mutable_upper_bounds()->Reserve(num_vars);</div>
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<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> vars->mutable_integers()->Reserve(num_vars);</div>
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<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="keywordflow">if</span> (vars_have_name) {</div>
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<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> vars->mutable_names()->Reserve(num_vars);</div>
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<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> }</div>
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<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.variable_size(); ++i) {</div>
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<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_variable_proto.html">MPVariableProto</a>& <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.variable(i);</div>
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<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>.objective_coefficient() != 0.0) {</div>
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<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> ++objective_non_zeros;</div>
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> }</div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> vars->add_ids(i);</div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> vars->add_lower_bounds(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>.lower_bound());</div>
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<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> vars->add_upper_bounds(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>.upper_bound());</div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> vars->add_integers(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>.is_integer());</div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <span class="keywordflow">if</span> (vars_have_name) {</div>
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<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> vars->add_names(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>.name());</div>
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<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> }</div>
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<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> }</div>
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<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> </div>
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<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> math_opt::ObjectiveProto* <span class="keyword">const</span> objective = output.mutable_objective();</div>
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<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> <span class="keywordflow">if</span> (objective_non_zeros > 0) {</div>
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<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> objective->mutable_linear_coefficients()->mutable_ids()->Reserve(</div>
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<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> objective_non_zeros);</div>
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<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> objective->mutable_linear_coefficients()->mutable_values()->Reserve(</div>
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<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> objective_non_zeros);</div>
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<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j < num_vars; ++j) {</div>
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<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> <span class="keyword">const</span> <span class="keywordtype">double</span> <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.variable(j).objective_coefficient();</div>
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<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> == 0.0) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> objective->mutable_linear_coefficients()->add_ids(j);</div>
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<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> objective->mutable_linear_coefficients()->add_values(<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>);</div>
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<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> }</div>
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<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> }</div>
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<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> objective->set_maximize(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.maximize());</div>
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<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> objective->set_offset(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.objective_offset());</div>
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<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> </div>
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<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> math_opt::LinearConstraintsProto* <span class="keyword">const</span> constraints =</div>
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<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> output.mutable_linear_constraints();</div>
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<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_constraints = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.constraint_size();</div>
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<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> constraints_have_name = AnyConstraintNamed(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="keywordtype">int</span> num_non_zeros = 0;</div>
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<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> constraints->mutable_lower_bounds()->Reserve(num_constraints);</div>
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<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> constraints->mutable_upper_bounds()->Reserve(num_constraints);</div>
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<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> <span class="keywordflow">if</span> (constraints_have_name) {</div>
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<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> constraints->mutable_names()->Reserve(num_constraints);</div>
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<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> }</div>
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<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_constraints; ++i) {</div>
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<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_constraint_proto.html">MPConstraintProto</a>& constraint = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.constraint(i);</div>
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<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> constraints->add_ids(i);</div>
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<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> constraints->add_lower_bounds(constraint.<a class="code hl_function" href="classoperations__research_1_1_m_p_constraint_proto.html#a9748ce3280b2d4c16a2cd38a480b9c7c">lower_bound</a>());</div>
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<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> constraints->add_upper_bounds(constraint.<a class="code hl_function" href="classoperations__research_1_1_m_p_constraint_proto.html#a5158072d27a176fc38524893183d6527">upper_bound</a>());</div>
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<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> <span class="keywordflow">if</span> (constraints_have_name) {</div>
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<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> constraints->add_names(constraint.<a class="code hl_function" href="classoperations__research_1_1_m_p_constraint_proto.html#a24dcbf29c0d6cd766009a182a6484e3b">name</a>());</div>
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<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> }</div>
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<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> num_non_zeros += constraint.<a class="code hl_function" href="classoperations__research_1_1_m_p_constraint_proto.html#a4dfd5e2229dc21c15a20bbfec7a7db1b">var_index_size</a>();</div>
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<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> }</div>
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<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> </div>
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<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> SparseDoubleMatrixProto* <span class="keyword">const</span> matrix =</div>
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<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> output.mutable_linear_constraint_matrix();</div>
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<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> matrix->mutable_column_ids()->Reserve(num_non_zeros);</div>
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<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> matrix->mutable_row_ids()->Reserve(num_non_zeros);</div>
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<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> matrix->mutable_coefficients()->Reserve(num_non_zeros);</div>
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<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> <span class="comment">// This allocation is reused across loop iterations, use caution!</span></div>
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<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> std::vector<std::pair<int, double>> terms_in_order;</div>
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<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_constraints; ++i) {</div>
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<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> <span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_constraint_proto.html">MPConstraintProto</a>& constraint = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.constraint(i);</div>
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<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> <span class="keyword">const</span> <span class="keywordtype">int</span> constraint_non_zeros = constraint.<a class="code hl_function" href="classoperations__research_1_1_m_p_constraint_proto.html#a4dfd5e2229dc21c15a20bbfec7a7db1b">var_index_size</a>();</div>
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<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> k = 0; k < constraint_non_zeros; ++k) {</div>
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<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> <span class="keyword">const</span> <span class="keywordtype">double</span> <a class="code hl_variable" href="routing__filters_8cc.html#a8e4ee19dee0e00541dbe9bbc83d806ba">coefficient</a> = constraint.<a class="code hl_function" href="classoperations__research_1_1_m_p_constraint_proto.html#a6d4f2226f8865f17756b31f8512ccfaf">coefficient</a>(k);</div>
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<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="routing__filters_8cc.html#a8e4ee19dee0e00541dbe9bbc83d806ba">coefficient</a> == 0.0) {</div>
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<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> }</div>
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<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> terms_in_order.emplace_back(constraint.<a class="code hl_function" href="classoperations__research_1_1_m_p_constraint_proto.html#a422ccbcb51f6edc2f80ffe7cd7ccacb7">var_index</a>(k), <a class="code hl_variable" href="routing__filters_8cc.html#a8e4ee19dee0e00541dbe9bbc83d806ba">coefficient</a>);</div>
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<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> }</div>
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<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> std::sort(terms_in_order.begin(), terms_in_order.end());</div>
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<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>& term : terms_in_order) {</div>
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<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> matrix->add_column_ids(i);</div>
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<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> matrix->add_row_ids(term.first);</div>
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<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> matrix->add_coefficients(term.second);</div>
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<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> }</div>
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<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> terms_in_order.clear();</div>
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<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> }</div>
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<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> <span class="keywordflow">return</span> output;</div>
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<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span>}</div>
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<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> </div>
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<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1math__opt.html#a349e18a8b5a1bfd4c97f9350851bd343"> 176</a></span>absl::StatusOr<::operations_research::MPModelProto> <a class="code hl_function" href="namespaceoperations__research_1_1math__opt.html#a349e18a8b5a1bfd4c97f9350851bd343">MathOptModelToMPModelProto</a>(</div>
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<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> const ::operations_research::math_opt::ModelProto& <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
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<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> <a class="code hl_define" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(IsSupported(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>));</div>
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<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> </div>
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<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> vars_have_name = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.variables().names_size() > 0;</div>
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<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> constraints_have_name =</div>
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<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.linear_constraints().names_size() > 0;</div>
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<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> absl::flat_hash_map<int64_t, int> variable_id_to_mp_position;</div>
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<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> absl::flat_hash_map<int64_t, MPConstraintProto*></div>
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<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> constraint_id_to_mp_constraint;</div>
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<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> </div>
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<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_model_proto.html">MPModelProto</a> output;</div>
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<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> output.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a74f7eb449a6e182b73c8b4a1dbf15ce6">set_name</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.name());</div>
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<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> </div>
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<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_vars = <a class="code hl_function" href="namespaceoperations__research_1_1math__opt.html#a3055f8b845cde39af2c3bed9007d4a06">NumVariables</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.variables());</div>
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<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> output.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a6255cadc7041d64f5e850a5e3786b3fd">mutable_variable</a>()->Reserve(num_vars);</div>
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<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j < num_vars; ++j) {</div>
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<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_variable_proto.html">MPVariableProto</a>* <span class="keyword">const</span> variable = output.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a4c6815e5419d4e4f94565b345eb38b9f">add_variable</a>();</div>
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<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> variable_id_to_mp_position.emplace(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.variables().ids(j), j);</div>
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<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> variable-><a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a77bf5d8610054e5bd74cf0048bce5f25">set_lower_bound</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.variables().lower_bounds(j));</div>
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<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> variable-><a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#ac91622e1f864308bd349b37d5b1a9528">set_upper_bound</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.variables().upper_bounds(j));</div>
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<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> variable-><a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a03ba55fe410af563250a79463d9eb7c6">set_is_integer</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.variables().integers(j));</div>
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<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> <span class="keywordflow">if</span> (vars_have_name) {</div>
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<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> variable-><a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a74f7eb449a6e182b73c8b4a1dbf15ce6">set_name</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.variables().names(j));</div>
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<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> }</div>
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<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> }</div>
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<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> </div>
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<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_constraints = <a class="code hl_function" href="namespaceoperations__research_1_1math__opt.html#a98600a28f0f805ae0cbe04802b0dcbc4">NumConstraints</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.linear_constraints());</div>
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<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> output.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a1615418d90b3ab3c4bbd2d886e8cac37">mutable_constraint</a>()->Reserve(num_constraints);</div>
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<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_constraints; ++i) {</div>
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<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_constraint_proto.html">MPConstraintProto</a>* <span class="keyword">const</span> constraint = output.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#ad84385236dc87ac3b0adc4c28246d1d5">add_constraint</a>();</div>
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<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> constraint_id_to_mp_constraint.emplace(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.linear_constraints().ids(i),</div>
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<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> constraint);</div>
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<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> constraint-><a class="code hl_function" href="classoperations__research_1_1_m_p_constraint_proto.html#a77bf5d8610054e5bd74cf0048bce5f25">set_lower_bound</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.linear_constraints().lower_bounds(i));</div>
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<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> constraint-><a class="code hl_function" href="classoperations__research_1_1_m_p_constraint_proto.html#ac91622e1f864308bd349b37d5b1a9528">set_upper_bound</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.linear_constraints().upper_bounds(i));</div>
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<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> <span class="keywordflow">if</span> (constraints_have_name) {</div>
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<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> constraint-><a class="code hl_function" href="classoperations__research_1_1_m_p_constraint_proto.html#a74f7eb449a6e182b73c8b4a1dbf15ce6">set_name</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.linear_constraints().names(i));</div>
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<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> }</div>
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<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> }</div>
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<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> </div>
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<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> output.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#afc89cdad1da44d059a05a45ec28634cf">set_maximize</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.objective().maximize());</div>
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<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> output.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#afe1e374f83d18136957c73fcaf399ba7">set_objective_offset</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.objective().offset());</div>
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<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>& [<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, <a class="code hl_variable" href="expr__array_8cc.html#abda708e4a6f0de72a842382f919a7c31">coef</a>] :</div>
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<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> <a class="code hl_function" href="namespaceoperations__research_1_1math__opt.html#a80e158d48db32a3bbbe915179b36e405">MakeView</a>(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.objective().linear_coefficients())) {</div>
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<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span> <span class="keyword">const</span> <span class="keywordtype">int</span> var_position = variable_id_to_mp_position[<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>];</div>
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<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_variable_proto.html">MPVariableProto</a>* <span class="keyword">const</span> variable = output.<a class="code hl_function" href="classoperations__research_1_1_m_p_model_proto.html#a6255cadc7041d64f5e850a5e3786b3fd">mutable_variable</a>(var_position);</div>
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<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> variable-><a class="code hl_function" href="classoperations__research_1_1_m_p_variable_proto.html#a4b8844c0490b3c525060762f8bc11a8c">set_objective_coefficient</a>(<a class="code hl_variable" href="expr__array_8cc.html#abda708e4a6f0de72a842382f919a7c31">coef</a>);</div>
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<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> }</div>
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<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> </div>
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<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> <span class="comment">// TODO(user): use the constraint iterator from scip_solver.cc here.</span></div>
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<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> <span class="keyword">const</span> <span class="keywordtype">int</span> constraint_non_zeros =</div>
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<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.linear_constraint_matrix().coefficients_size();</div>
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<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> k = 0; k < constraint_non_zeros; ++k) {</div>
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<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> <span class="keyword">const</span> int64_t constraint_id = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.linear_constraint_matrix().row_ids(k);</div>
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<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> <a class="code hl_class" href="classoperations__research_1_1_m_p_constraint_proto.html">MPConstraintProto</a>* <span class="keyword">const</span> constraint =</div>
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<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> constraint_id_to_mp_constraint[constraint_id];</div>
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<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> <span class="keyword">const</span> int64_t variable_id = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.linear_constraint_matrix().column_ids(k);</div>
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<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> <span class="keyword">const</span> <span class="keywordtype">int</span> variable_position = variable_id_to_mp_position[variable_id];</div>
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<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> constraint-><a class="code hl_function" href="classoperations__research_1_1_m_p_constraint_proto.html#aa38eaf33d95ea399d9b1fc7ee9c996fd">add_var_index</a>(variable_position);</div>
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<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> <span class="keyword">const</span> <span class="keywordtype">double</span> <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.linear_constraint_matrix().coefficients(k);</div>
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<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> constraint-><a class="code hl_function" href="classoperations__research_1_1_m_p_constraint_proto.html#ab6d1169646b89c2fb993c5b2e40eb925">add_coefficient</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>);</div>
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<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> }</div>
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<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> </div>
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<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> <span class="keywordflow">return</span> output;</div>
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<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span>}</div>
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<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> </div>
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<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span>} <span class="comment">// namespace math_opt</span></div>
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<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span>} <span class="comment">// namespace operations_research</span></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_constraint_proto_html"><div class="ttname"><a href="classoperations__research_1_1_m_p_constraint_proto.html">operations_research::MPConstraintProto</a></div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l00507">linear_solver.pb.h:508</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_constraint_proto_html_a24dcbf29c0d6cd766009a182a6484e3b"><div class="ttname"><a href="classoperations__research_1_1_m_p_constraint_proto.html#a24dcbf29c0d6cd766009a182a6484e3b">operations_research::MPConstraintProto::name</a></div><div class="ttdeci">const std::string & name() const</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l05114">linear_solver.pb.h:5114</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_constraint_proto_html_a422ccbcb51f6edc2f80ffe7cd7ccacb7"><div class="ttname"><a href="classoperations__research_1_1_m_p_constraint_proto.html#a422ccbcb51f6edc2f80ffe7cd7ccacb7">operations_research::MPConstraintProto::var_index</a></div><div class="ttdeci">::PROTOBUF_NAMESPACE_ID::int32 var_index(int index) const</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l04965">linear_solver.pb.h:4965</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_constraint_proto_html_a4dfd5e2229dc21c15a20bbfec7a7db1b"><div class="ttname"><a href="classoperations__research_1_1_m_p_constraint_proto.html#a4dfd5e2229dc21c15a20bbfec7a7db1b">operations_research::MPConstraintProto::var_index_size</a></div><div class="ttdeci">int var_index_size() const</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l04956">linear_solver.pb.h:4956</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_constraint_proto_html_a5158072d27a176fc38524893183d6527"><div class="ttname"><a href="classoperations__research_1_1_m_p_constraint_proto.html#a5158072d27a176fc38524893183d6527">operations_research::MPConstraintProto::upper_bound</a></div><div class="ttdeci">double upper_bound() const</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l05089">linear_solver.pb.h:5089</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_constraint_proto_html_a6d4f2226f8865f17756b31f8512ccfaf"><div class="ttname"><a href="classoperations__research_1_1_m_p_constraint_proto.html#a6d4f2226f8865f17756b31f8512ccfaf">operations_research::MPConstraintProto::coefficient</a></div><div class="ttdeci">double coefficient(int index) const</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l05012">linear_solver.pb.h:5012</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_constraint_proto_html_a74f7eb449a6e182b73c8b4a1dbf15ce6"><div class="ttname"><a href="classoperations__research_1_1_m_p_constraint_proto.html#a74f7eb449a6e182b73c8b4a1dbf15ce6">operations_research::MPConstraintProto::set_name</a></div><div class="ttdeci">void set_name(ArgT0 &&arg0, ArgT... args)</div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_constraint_proto_html_a77bf5d8610054e5bd74cf0048bce5f25"><div class="ttname"><a href="classoperations__research_1_1_m_p_constraint_proto.html#a77bf5d8610054e5bd74cf0048bce5f25">operations_research::MPConstraintProto::set_lower_bound</a></div><div class="ttdeci">void set_lower_bound(double value)</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l05069">linear_solver.pb.h:5069</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_constraint_proto_html_a9748ce3280b2d4c16a2cd38a480b9c7c"><div class="ttname"><a href="classoperations__research_1_1_m_p_constraint_proto.html#a9748ce3280b2d4c16a2cd38a480b9c7c">operations_research::MPConstraintProto::lower_bound</a></div><div class="ttdeci">double lower_bound() const</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l05061">linear_solver.pb.h:5061</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_constraint_proto_html_aa38eaf33d95ea399d9b1fc7ee9c996fd"><div class="ttname"><a href="classoperations__research_1_1_m_p_constraint_proto.html#aa38eaf33d95ea399d9b1fc7ee9c996fd">operations_research::MPConstraintProto::add_var_index</a></div><div class="ttdeci">void add_var_index(::PROTOBUF_NAMESPACE_ID::int32 value)</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l04976">linear_solver.pb.h:4976</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_constraint_proto_html_ab6d1169646b89c2fb993c5b2e40eb925"><div class="ttname"><a href="classoperations__research_1_1_m_p_constraint_proto.html#ab6d1169646b89c2fb993c5b2e40eb925">operations_research::MPConstraintProto::add_coefficient</a></div><div class="ttdeci">void add_coefficient(double value)</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l05023">linear_solver.pb.h:5023</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_constraint_proto_html_ac91622e1f864308bd349b37d5b1a9528"><div class="ttname"><a href="classoperations__research_1_1_m_p_constraint_proto.html#ac91622e1f864308bd349b37d5b1a9528">operations_research::MPConstraintProto::set_upper_bound</a></div><div class="ttdeci">void set_upper_bound(double value)</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l05097">linear_solver.pb.h:5097</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_model_proto_html"><div class="ttname"><a href="classoperations__research_1_1_m_p_model_proto.html">operations_research::MPModelProto</a></div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l02767">linear_solver.pb.h:2768</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_model_proto_html_a1615418d90b3ab3c4bbd2d886e8cac37"><div class="ttname"><a href="classoperations__research_1_1_m_p_model_proto.html#a1615418d90b3ab3c4bbd2d886e8cac37">operations_research::MPModelProto::mutable_constraint</a></div><div class="ttdeci">::operations_research::MPConstraintProto * mutable_constraint(int index)</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l06966">linear_solver.pb.h:6966</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_model_proto_html_a4c6815e5419d4e4f94565b345eb38b9f"><div class="ttname"><a href="classoperations__research_1_1_m_p_model_proto.html#a4c6815e5419d4e4f94565b345eb38b9f">operations_research::MPModelProto::add_variable</a></div><div class="ttdeci">::operations_research::MPVariableProto * add_variable()</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l06945">linear_solver.pb.h:6945</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_model_proto_html_a6255cadc7041d64f5e850a5e3786b3fd"><div class="ttname"><a href="classoperations__research_1_1_m_p_model_proto.html#a6255cadc7041d64f5e850a5e3786b3fd">operations_research::MPModelProto::mutable_variable</a></div><div class="ttdeci">::operations_research::MPVariableProto * mutable_variable(int index)</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l06926">linear_solver.pb.h:6926</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_model_proto_html_a74f7eb449a6e182b73c8b4a1dbf15ce6"><div class="ttname"><a href="classoperations__research_1_1_m_p_model_proto.html#a74f7eb449a6e182b73c8b4a1dbf15ce6">operations_research::MPModelProto::set_name</a></div><div class="ttdeci">void set_name(ArgT0 &&arg0, ArgT... args)</div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_model_proto_html_ad84385236dc87ac3b0adc4c28246d1d5"><div class="ttname"><a href="classoperations__research_1_1_m_p_model_proto.html#ad84385236dc87ac3b0adc4c28246d1d5">operations_research::MPModelProto::add_constraint</a></div><div class="ttdeci">::operations_research::MPConstraintProto * add_constraint()</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l06985">linear_solver.pb.h:6985</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_model_proto_html_afc89cdad1da44d059a05a45ec28634cf"><div class="ttname"><a href="classoperations__research_1_1_m_p_model_proto.html#afc89cdad1da44d059a05a45ec28634cf">operations_research::MPModelProto::set_maximize</a></div><div class="ttdeci">void set_maximize(bool value)</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l07059">linear_solver.pb.h:7059</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_model_proto_html_afe1e374f83d18136957c73fcaf399ba7"><div class="ttname"><a href="classoperations__research_1_1_m_p_model_proto.html#afe1e374f83d18136957c73fcaf399ba7">operations_research::MPModelProto::set_objective_offset</a></div><div class="ttdeci">void set_objective_offset(double value)</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l07087">linear_solver.pb.h:7087</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_variable_proto_html"><div class="ttname"><a href="classoperations__research_1_1_m_p_variable_proto.html">operations_research::MPVariableProto</a></div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l00272">linear_solver.pb.h:273</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_variable_proto_html_a03ba55fe410af563250a79463d9eb7c6"><div class="ttname"><a href="classoperations__research_1_1_m_p_variable_proto.html#a03ba55fe410af563250a79463d9eb7c6">operations_research::MPVariableProto::set_is_integer</a></div><div class="ttdeci">void set_is_integer(bool value)</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l04857">linear_solver.pb.h:4857</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_variable_proto_html_a4b8844c0490b3c525060762f8bc11a8c"><div class="ttname"><a href="classoperations__research_1_1_m_p_variable_proto.html#a4b8844c0490b3c525060762f8bc11a8c">operations_research::MPVariableProto::set_objective_coefficient</a></div><div class="ttdeci">void set_objective_coefficient(double value)</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l04829">linear_solver.pb.h:4829</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_variable_proto_html_a74f7eb449a6e182b73c8b4a1dbf15ce6"><div class="ttname"><a href="classoperations__research_1_1_m_p_variable_proto.html#a74f7eb449a6e182b73c8b4a1dbf15ce6">operations_research::MPVariableProto::set_name</a></div><div class="ttdeci">void set_name(ArgT0 &&arg0, ArgT... args)</div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_variable_proto_html_a77bf5d8610054e5bd74cf0048bce5f25"><div class="ttname"><a href="classoperations__research_1_1_m_p_variable_proto.html#a77bf5d8610054e5bd74cf0048bce5f25">operations_research::MPVariableProto::set_lower_bound</a></div><div class="ttdeci">void set_lower_bound(double value)</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l04773">linear_solver.pb.h:4773</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_m_p_variable_proto_html_ac91622e1f864308bd349b37d5b1a9528"><div class="ttname"><a href="classoperations__research_1_1_m_p_variable_proto.html#ac91622e1f864308bd349b37d5b1a9528">operations_research::MPVariableProto::set_upper_bound</a></div><div class="ttdeci">void set_upper_bound(double value)</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_8pb_8h_source.html#l04801">linear_solver.pb.h:4801</a></div></div>
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<div class="ttc" id="ademon__profiler_8cc_html_ac072af30c4ffbc834bb4c681f6ecb514"><div class="ttname"><a href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a></div><div class="ttdeci">int64_t value</div><div class="ttdef"><b>Definition:</b> <a href="demon__profiler_8cc_source.html#l00044">demon_profiler.cc:44</a></div></div>
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<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>
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<div class="ttc" id="aexpr__array_8cc_html_abda708e4a6f0de72a842382f919a7c31"><div class="ttname"><a href="expr__array_8cc.html#abda708e4a6f0de72a842382f919a7c31">coef</a></div><div class="ttdeci">int64_t coef</div><div class="ttdef"><b>Definition:</b> <a href="expr__array_8cc_source.html#l01875">expr_array.cc:1875</a></div></div>
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<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#l00273">gurobi_interface.cc:273</a></div></div>
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<div class="ttc" id="alinear__solver_8pb_8h_html"><div class="ttname"><a href="linear__solver_8pb_8h.html">linear_solver.pb.h</a></div></div>
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<div class="ttc" id="amath__opt__proto__utils_8h_html"><div class="ttname"><a href="math__opt__proto__utils_8h.html">math_opt_proto_utils.h</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1math__opt_html_a3055f8b845cde39af2c3bed9007d4a06"><div class="ttname"><a href="namespaceoperations__research_1_1math__opt.html#a3055f8b845cde39af2c3bed9007d4a06">operations_research::math_opt::NumVariables</a></div><div class="ttdeci">int NumVariables(const VariablesProto &variables)</div><div class="ttdef"><b>Definition:</b> <a href="math__opt__proto__utils_8h_source.html#l00031">math_opt_proto_utils.h:31</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1math__opt_html_a349e18a8b5a1bfd4c97f9350851bd343"><div class="ttname"><a href="namespaceoperations__research_1_1math__opt.html#a349e18a8b5a1bfd4c97f9350851bd343">operations_research::math_opt::MathOptModelToMPModelProto</a></div><div class="ttdeci">absl::StatusOr<::operations_research::MPModelProto > MathOptModelToMPModelProto(const ::operations_research::math_opt::ModelProto &model)</div><div class="ttdef"><b>Definition:</b> <a href="proto__converter_8cc_source.html#l00176">proto_converter.cc:176</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1math__opt_html_a80e158d48db32a3bbbe915179b36e405"><div class="ttname"><a href="namespaceoperations__research_1_1math__opt.html#a80e158d48db32a3bbbe915179b36e405">operations_research::math_opt::MakeView</a></div><div class="ttdeci">SparseVectorView< T > MakeView(absl::Span< const int64_t > ids, const Collection &values)</div><div class="ttdef"><b>Definition:</b> <a href="sparse__vector__view_8h_source.html#l00140">sparse_vector_view.h:140</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1math__opt_html_a98600a28f0f805ae0cbe04802b0dcbc4"><div class="ttname"><a href="namespaceoperations__research_1_1math__opt.html#a98600a28f0f805ae0cbe04802b0dcbc4">operations_research::math_opt::NumConstraints</a></div><div class="ttdeci">int NumConstraints(const LinearConstraintsProto &linear_constraints)</div><div class="ttdef"><b>Definition:</b> <a href="math__opt__proto__utils_8h_source.html#l00035">math_opt_proto_utils.h:35</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1math__opt_html_a9e2a71c5e9609cac6791082f11176b45"><div class="ttname"><a href="namespaceoperations__research_1_1math__opt.html#a9e2a71c5e9609cac6791082f11176b45">operations_research::math_opt::MPModelProtoToMathOptModel</a></div><div class="ttdeci">absl::StatusOr<::operations_research::math_opt::ModelProto > MPModelProtoToMathOptModel(const ::operations_research::MPModelProto &model)</div><div class="ttdef"><b>Definition:</b> <a href="proto__converter_8cc_source.html#l00081">proto_converter.cc:81</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1math__opt_html_af039565f98410c47887cc13d5dbdd31b"><div class="ttname"><a href="namespaceoperations__research_1_1math__opt.html#af039565f98410c47887cc13d5dbdd31b">operations_research::math_opt::ValidateModel</a></div><div class="ttdeci">absl::Status ValidateModel(const ModelProto &model, const bool check_names)</div><div class="ttdef"><b>Definition:</b> <a href="math__opt_2validators_2model__validator_8cc_source.html#l00251">math_opt/validators/model_validator.cc:251</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>
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<div class="ttc" id="anamespaceoperations__research_html_aa964b4fd4cba1119c722a85bea947d05"><div class="ttname"><a href="namespaceoperations__research.html#aa964b4fd4cba1119c722a85bea947d05">operations_research::FindErrorInMPModelProto</a></div><div class="ttdeci">std::string FindErrorInMPModelProto(const MPModelProto &model, double abs_value_threshold, const bool accept_trivially_infeasible_bounds)</div><div class="ttdoc">Returns an empty string iff the model is valid and not trivially infeasible.</div><div class="ttdef"><b>Definition:</b> <a href="linear__solver_2model__validator_8cc_source.html#l00423">linear_solver/model_validator.cc:423</a></div></div>
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<div class="ttc" id="aproto__converter_8h_html"><div class="ttname"><a href="proto__converter_8h.html">proto_converter.h</a></div></div>
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<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#l00985">routing_filters.cc:985</a></div></div>
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<div class="ttc" id="asparse__vector__view_8h_html"><div class="ttname"><a href="sparse__vector__view_8h.html">sparse_vector_view.h</a></div></div>
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