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<a href="TspCities_8java.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">// Copyright 2010-2018 Google LLC</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">// Licensed under the Apache License, Version 2.0 (the &quot;License&quot;);</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">// you may not use this file except in compliance with the License.</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment">// You may obtain a copy of the License at</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="comment">// distributed under the License is distributed on an &quot;AS IS&quot; BASIS,</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment">// See the License for the specific language governing permissions and</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="comment">// limitations under the License.</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;</div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="comment">// [START program]</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="comment">// [START import]</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="keyword">import</span> <a class="code" href="namespacecom.html">com</a>.<a class="code" href="namespacecom_1_1google.html">google</a>.<a class="code" href="namespacecom_1_1google_1_1ortools.html">ortools</a>.<a class="code" href="namespacecom_1_1google_1_1ortools_1_1constraintsolver.html">constraintsolver</a>.<a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1Assignment.html">Assignment</a>;</div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="keyword">import</span> <a class="code" href="namespacecom.html">com</a>.<a class="code" href="namespacecom_1_1google.html">google</a>.<a class="code" href="namespacecom_1_1google_1_1ortools.html">ortools</a>.<a class="code" href="namespacecom_1_1google_1_1ortools_1_1constraintsolver.html">constraintsolver</a>.<a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1FirstSolutionStrategy.html">FirstSolutionStrategy</a>;</div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="keyword">import</span> <a class="code" href="namespacecom.html">com</a>.<a class="code" href="namespacecom_1_1google.html">google</a>.<a class="code" href="namespacecom_1_1google_1_1ortools.html">ortools</a>.<a class="code" href="namespacecom_1_1google_1_1ortools_1_1constraintsolver.html">constraintsolver</a>.<a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingIndexManager.html">RoutingIndexManager</a>;</div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="keyword">import</span> <a class="code" href="namespacecom.html">com</a>.<a class="code" href="namespacecom_1_1google.html">google</a>.<a class="code" href="namespacecom_1_1google_1_1ortools.html">ortools</a>.<a class="code" href="namespacecom_1_1google_1_1ortools_1_1constraintsolver.html">constraintsolver</a>.<a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel.html">RoutingModel</a>;</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="keyword">import</span> <a class="code" href="namespacecom.html">com</a>.<a class="code" href="namespacecom_1_1google.html">google</a>.<a class="code" href="namespacecom_1_1google_1_1ortools.html">ortools</a>.<a class="code" href="namespacecom_1_1google_1_1ortools_1_1constraintsolver.html">constraintsolver</a>.<a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingSearchParameters.html">RoutingSearchParameters</a>;</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="keyword">import</span> <a class="code" href="namespacecom.html">com</a>.<a class="code" href="namespacecom_1_1google.html">google</a>.<a class="code" href="namespacecom_1_1google_1_1ortools.html">ortools</a>.<a class="code" href="namespacecom_1_1google_1_1ortools_1_1constraintsolver.html">constraintsolver</a>.<a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1main.html">main</a>;</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="keyword">import</span> java.util.logging.Logger;</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="comment">// [END import]</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;</div><div class="line"><a name="l00027"></a><span class="lineno"><a class="line" href="classTspCities.html"> 27</a></span>&#160;<span class="keyword">public</span> <span class="keyword">class </span><a class="code" href="classTspCities.html">TspCities</a> {</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160; <span class="keyword">static</span> {</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160; System.loadLibrary(<span class="stringliteral">&quot;jniortools&quot;</span>);</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160; }</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; <span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">final</span> Logger logger = Logger.getLogger(<a class="code" href="classTspCities.html">TspCities</a>.class.getName());</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; <span class="comment">// [START data_model]</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; <span class="keyword">static</span> <span class="keyword">class </span>DataModel {</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; <span class="keyword">public</span> <span class="keyword">final</span> <span class="keywordtype">long</span>[][] distanceMatrix = {</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; {0, 2451, 713, 1018, 1631, 1374, 2408, 213, 2571, 875, 1420, 2145, 1972},</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; {2451, 0, 1745, 1524, 831, 1240, 959, 2596, 403, 1589, 1374, 357, 579},</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; {713, 1745, 0, 355, 920, 803, 1737, 851, 1858, 262, 940, 1453, 1260},</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; {1018, 1524, 355, 0, 700, 862, 1395, 1123, 1584, 466, 1056, 1280, 987},</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; {1631, 831, 920, 700, 0, 663, 1021, 1769, 949, 796, 879, 586, 371},</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; {1374, 1240, 803, 862, 663, 0, 1681, 1551, 1765, 547, 225, 887, 999},</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; {2408, 959, 1737, 1395, 1021, 1681, 0, 2493, 678, 1724, 1891, 1114, 701},</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; {213, 2596, 851, 1123, 1769, 1551, 2493, 0, 2699, 1038, 1605, 2300, 2099},</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; {2571, 403, 1858, 1584, 949, 1765, 678, 2699, 0, 1744, 1645, 653, 600},</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; {875, 1589, 262, 466, 796, 547, 1724, 1038, 1744, 0, 679, 1272, 1162},</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; {1420, 1374, 940, 1056, 879, 225, 1891, 1605, 1645, 679, 0, 1017, 1200},</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; {2145, 357, 1453, 1280, 586, 887, 1114, 2300, 653, 1272, 1017, 0, 504},</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; {1972, 579, 1260, 987, 371, 999, 701, 2099, 600, 1162, 1200, 504, 0},</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; };</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; <span class="keyword">public</span> <span class="keyword">final</span> <span class="keywordtype">int</span> vehicleNumber = 1;</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; <span class="keyword">public</span> <span class="keyword">final</span> <span class="keywordtype">int</span> depot = 0;</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; }</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; <span class="comment">// [END data_model]</span></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160;</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; <span class="comment">// [START solution_printer]</span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160;<span class="comment"></span> <span class="keyword">static</span> <span class="keywordtype">void</span> printSolution(</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; <a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel.html">RoutingModel</a> routing, <a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingIndexManager.html">RoutingIndexManager</a> manager, <a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1Assignment.html">Assignment</a> solution) {</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; <span class="comment">// Solution cost.</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; logger.info(<span class="stringliteral">&quot;Objective: &quot;</span> + solution.<a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1Assignment.html#af7e45781478c648cfd0d277b4588fd8a">objectiveValue</a>() + <span class="stringliteral">&quot;miles&quot;</span>);</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; <span class="comment">// Inspect solution.</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; logger.info(<span class="stringliteral">&quot;Route:&quot;</span>);</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; <span class="keywordtype">long</span> routeDistance = 0;</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; String route = <span class="stringliteral">&quot;&quot;</span>;</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; <span class="keywordtype">long</span> index = routing.<a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel.html#a446b08044360add5ac70e79c1f88d30a">start</a>(0);</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; <span class="keywordflow">while</span> (!routing.<a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel.html#a06868c9f11737065bfb37cb9d37579e7">isEnd</a>(index)) {</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; route += manager.<a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingIndexManager.html#af943d115205ced5b3495a722330c709b">indexToNode</a>(index) + <span class="stringliteral">&quot; -&gt; &quot;</span>;</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; <span class="keywordtype">long</span> previousIndex = index;</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; index = solution.<a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1Assignment.html#a889aac7c3b3286a2342d7cebcad17dd8">value</a>(routing.<a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel.html#aeee491a70bc08d4814a80fd207091d05">nextVar</a>(index));</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; routeDistance += routing.<a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel.html#a7e304edf03b566a7c4dd0f620451f300">getArcCostForVehicle</a>(previousIndex, index, 0);</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; }</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; route += manager.<a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingIndexManager.html#af943d115205ced5b3495a722330c709b">indexToNode</a>(routing.<a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel.html#aaf34bb53f6a3640565d6656fc41786f5">end</a>(0));</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; logger.info(route);</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; logger.info(<span class="stringliteral">&quot;Route distance: &quot;</span> + routeDistance + <span class="stringliteral">&quot;miles&quot;</span>);</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; }</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; <span class="comment">// [END solution_printer]</span></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160;</div><div class="line"><a name="l00079"></a><span class="lineno"><a class="line" href="classTspCities.html#a68edbcc11b319bd4161f625e0019166d"> 79</a></span>&#160; <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classTspCities.html#a68edbcc11b319bd4161f625e0019166d">main</a>(String[] args) <span class="keywordflow">throws</span> Exception {</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; <span class="comment">// Instantiate the data problem.</span></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; <span class="comment">// [START data]</span></div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; <span class="keyword">final</span> DataModel data = <span class="keyword">new</span> DataModel();</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; <span class="comment">// [END data]</span></div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160;</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; <span class="comment">// Create Routing Index Manager</span></div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; <span class="comment">// [START index_manager]</span></div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; <a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingIndexManager.html">RoutingIndexManager</a> manager =</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; <span class="keyword">new</span> <a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingIndexManager.html">RoutingIndexManager</a>(data.distanceMatrix.length, data.vehicleNumber, data.depot);</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; <span class="comment">// [END index_manager]</span></div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160;</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; <span class="comment">// Create Routing Model.</span></div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; <span class="comment">// [START routing_model]</span></div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; <a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel.html">RoutingModel</a> routing = <span class="keyword">new</span> <a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel.html">RoutingModel</a>(manager);</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; <span class="comment">// [END routing_model]</span></div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160;</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; <span class="comment">// Create and register a transit callback.</span></div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; <span class="comment">// [START transit_callback]</span></div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; <span class="keyword">final</span> <span class="keywordtype">int</span> transitCallbackIndex =</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; routing.<a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel.html#a36b69016b7610939d29db553d03e9e8a">registerTransitCallback</a>((<span class="keywordtype">long</span> fromIndex, <span class="keywordtype">long</span> toIndex) -&gt; {</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; <span class="comment">// Convert from routing variable Index to user NodeIndex.</span></div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; <span class="keywordtype">int</span> fromNode = manager.<a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingIndexManager.html#af943d115205ced5b3495a722330c709b">indexToNode</a>(fromIndex);</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; <span class="keywordtype">int</span> toNode = manager.<a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingIndexManager.html#af943d115205ced5b3495a722330c709b">indexToNode</a>(toIndex);</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; <span class="keywordflow">return</span> data.distanceMatrix[fromNode][toNode];</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; });</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; <span class="comment">// [END transit_callback]</span></div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160;</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; <span class="comment">// Define cost of each arc.</span></div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; <span class="comment">// [START arc_cost]</span></div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; routing.<a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel.html#a378cc028968a8e960a8a34b5d5d80956">setArcCostEvaluatorOfAllVehicles</a>(transitCallbackIndex);</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; <span class="comment">// [END arc_cost]</span></div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160;</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; <span class="comment">// Setting first solution heuristic.</span></div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; <span class="comment">// [START parameters]</span></div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; <a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingSearchParameters.html">RoutingSearchParameters</a> searchParameters =</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; <a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1main.html">main</a>.<a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1main.html#a9be7b282760643b582e20e78424ed5ac">defaultRoutingSearchParameters</a>()</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; .<a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingSearchParameters.html#a02f100cb6b7dba5d3f67c71d126ec945">toBuilder</a>()</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; .<a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingSearchParameters_1_1Builder.html#a4045393900d1f980ebeaf7ae0be29366">setFirstSolutionStrategy</a>(<a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1FirstSolutionStrategy.html">FirstSolutionStrategy</a>.<a class="code" href="enumcom_1_1google_1_1ortools_1_1constraintsolver_1_1FirstSolutionStrategy_1_1Value.html">Value</a>.<a class="code" href="enumcom_1_1google_1_1ortools_1_1constraintsolver_1_1FirstSolutionStrategy_1_1Value.html#a36bae5ade0433aa2bdfd57daf1374a3c">PATH_CHEAPEST_ARC</a>)</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; .<a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingSearchParameters_1_1Builder.html#a47e2da700a8d33b55478dc6e8ef124cd">build</a>();</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; <span class="comment">// [END parameters]</span></div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160;</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; <span class="comment">// Solve the problem.</span></div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; <span class="comment">// [START solve]</span></div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; <a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1Assignment.html">Assignment</a> solution = routing.<a class="code" href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel.html#a9e892269c5cda0c4a4e082029df3d60b">solveWithParameters</a>(searchParameters);</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; <span class="comment">// [END solve]</span></div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160;</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; <span class="comment">// Print solution on console.</span></div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; <span class="comment">// [START print_solution]</span></div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; printSolution(routing, manager, solution);</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; <span class="comment">// [END print_solution]</span></div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; }</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160;}</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160;<span class="comment">// [END program]</span></div><div class="ttc" id="enumcom_1_1google_1_1ortools_1_1constraintsolver_1_1FirstSolutionStrategy_1_1Value_html"><div class="ttname"><a href="enumcom_1_1google_1_1ortools_1_1constraintsolver_1_1FirstSolutionStrategy_1_1Value.html">com.google.ortools.constraintsolver.FirstSolutionStrategy.Value</a></div><div class="ttdoc">Protobuf enum.</div><div class="ttdef"><b>Definition:</b> <a href="FirstSolutionStrategy_8java_source.html#l00083">FirstSolutionStrategy.java:83</a></div></div>
<div class="ttc" id="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1main_html_a9be7b282760643b582e20e78424ed5ac"><div class="ttname"><a href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1main.html#a9be7b282760643b582e20e78424ed5ac">com.google.ortools.constraintsolver.main.defaultRoutingSearchParameters</a></div><div class="ttdeci">static com.google.ortools.constraintsolver.RoutingSearchParameters defaultRoutingSearchParameters()</div><div class="ttdef"><b>Definition:</b> <a href="constraintsolver_2main_8java_source.html#l00065">constraintsolver/main.java:65</a></div></div>
<div class="ttc" id="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel_html_a36b69016b7610939d29db553d03e9e8a"><div class="ttname"><a href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel.html#a36b69016b7610939d29db553d03e9e8a">com.google.ortools.constraintsolver.RoutingModel.registerTransitCallback</a></div><div class="ttdeci">int registerTransitCallback(LongBinaryOperator callback)</div><div class="ttdef"><b>Definition:</b> <a href="RoutingModel_8java_source.html#l00069">RoutingModel.java:69</a></div></div>
<div class="ttc" id="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1Assignment_html_af7e45781478c648cfd0d277b4588fd8a"><div class="ttname"><a href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1Assignment.html#af7e45781478c648cfd0d277b4588fd8a">com.google.ortools.constraintsolver.Assignment.objectiveValue</a></div><div class="ttdeci">long objectiveValue()</div><div class="ttdef"><b>Definition:</b> <a href="Assignment_8java_source.html#l00115">Assignment.java:115</a></div></div>
<div class="ttc" id="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingIndexManager_html"><div class="ttname"><a href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingIndexManager.html">com.google.ortools.constraintsolver.RoutingIndexManager</a></div><div class="ttdef"><b>Definition:</b> <a href="RoutingIndexManager_8java_source.html#l00011">RoutingIndexManager.java:11</a></div></div>
<div class="ttc" id="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingSearchParameters_html"><div class="ttname"><a href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingSearchParameters.html">com.google.ortools.constraintsolver.RoutingSearchParameters</a></div><div class="ttdef"><b>Definition:</b> <a href="RoutingSearchParameters_8java_source.html#l00017">RoutingSearchParameters.java:17</a></div></div>
<div class="ttc" id="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1FirstSolutionStrategy_html"><div class="ttname"><a href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1FirstSolutionStrategy.html">com.google.ortools.constraintsolver.FirstSolutionStrategy</a></div><div class="ttdef"><b>Definition:</b> <a href="FirstSolutionStrategy_8java_source.html#l00013">FirstSolutionStrategy.java:13</a></div></div>
<div class="ttc" id="classTspCities_html_a68edbcc11b319bd4161f625e0019166d"><div class="ttname"><a href="classTspCities.html#a68edbcc11b319bd4161f625e0019166d">TspCities.main</a></div><div class="ttdeci">static void main(String[] args)</div><div class="ttdef"><b>Definition:</b> <a href="TspCities_8java_source.html#l00079">TspCities.java:79</a></div></div>
<div class="ttc" id="namespacecom_html"><div class="ttname"><a href="namespacecom.html">com</a></div></div>
<div class="ttc" id="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel_html_a446b08044360add5ac70e79c1f88d30a"><div class="ttname"><a href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel.html#a446b08044360add5ac70e79c1f88d30a">com.google.ortools.constraintsolver.RoutingModel.start</a></div><div class="ttdeci">long start(int vehicle)</div><div class="ttdef"><b>Definition:</b> <a href="RoutingModel_8java_source.html#l00416">RoutingModel.java:416</a></div></div>
<div class="ttc" id="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel_html_a7e304edf03b566a7c4dd0f620451f300"><div class="ttname"><a href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel.html#a7e304edf03b566a7c4dd0f620451f300">com.google.ortools.constraintsolver.RoutingModel.getArcCostForVehicle</a></div><div class="ttdeci">long getArcCostForVehicle(long from_index, long to_index, long vehicle)</div><div class="ttdef"><b>Definition:</b> <a href="RoutingModel_8java_source.html#l00477">RoutingModel.java:477</a></div></div>
<div class="ttc" id="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingSearchParameters_1_1Builder_html_a47e2da700a8d33b55478dc6e8ef124cd"><div class="ttname"><a href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingSearchParameters_1_1Builder.html#a47e2da700a8d33b55478dc6e8ef124cd">com.google.ortools.constraintsolver.RoutingSearchParameters.Builder.build</a></div><div class="ttdeci">.lang.Override com.google.ortools.constraintsolver.RoutingSearchParameters build()</div><div class="ttdef"><b>Definition:</b> <a href="RoutingSearchParameters_8java_source.html#l06625">RoutingSearchParameters.java:6625</a></div></div>
<div class="ttc" id="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1main_html"><div class="ttname"><a href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1main.html">com.google.ortools.constraintsolver.main</a></div><div class="ttdef"><b>Definition:</b> <a href="constraintsolver_2main_8java_source.html#l00011">constraintsolver/main.java:11</a></div></div>
<div class="ttc" id="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel_html"><div class="ttname"><a href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel.html">com.google.ortools.constraintsolver.RoutingModel</a></div><div class="ttdef"><b>Definition:</b> <a href="RoutingModel_8java_source.html#l00018">RoutingModel.java:18</a></div></div>
<div class="ttc" id="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingSearchParameters_1_1Builder_html_a4045393900d1f980ebeaf7ae0be29366"><div class="ttname"><a href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingSearchParameters_1_1Builder.html#a4045393900d1f980ebeaf7ae0be29366">com.google.ortools.constraintsolver.RoutingSearchParameters.Builder.setFirstSolutionStrategy</a></div><div class="ttdeci">Builder setFirstSolutionStrategy(com.google.ortools.constraintsolver.FirstSolutionStrategy.Value value)</div><div class="ttdef"><b>Definition:</b> <a href="RoutingSearchParameters_8java_source.html#l06863">RoutingSearchParameters.java:6863</a></div></div>
<div class="ttc" id="classTspCities_html"><div class="ttname"><a href="classTspCities.html">TspCities</a></div><div class="ttdoc">Minimal TSP using distance matrix.</div><div class="ttdef"><b>Definition:</b> <a href="TspCities_8java_source.html#l00027">TspCities.java:27</a></div></div>
<div class="ttc" id="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel_html_a9e892269c5cda0c4a4e082029df3d60b"><div class="ttname"><a href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel.html#a9e892269c5cda0c4a4e082029df3d60b">com.google.ortools.constraintsolver.RoutingModel.solveWithParameters</a></div><div class="ttdeci">Assignment solveWithParameters(com.google.ortools.constraintsolver.RoutingSearchParameters search_parameters)</div><div class="ttdef"><b>Definition:</b> <a href="RoutingModel_8java_source.html#l00321">RoutingModel.java:321</a></div></div>
<div class="ttc" id="namespacecom_1_1google_1_1ortools_html"><div class="ttname"><a href="namespacecom_1_1google_1_1ortools.html">com.google.ortools</a></div></div>
<div class="ttc" id="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel_html_aaf34bb53f6a3640565d6656fc41786f5"><div class="ttname"><a href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel.html#aaf34bb53f6a3640565d6656fc41786f5">com.google.ortools.constraintsolver.RoutingModel.end</a></div><div class="ttdeci">long end(int vehicle)</div><div class="ttdef"><b>Definition:</b> <a href="RoutingModel_8java_source.html#l00420">RoutingModel.java:420</a></div></div>
<div class="ttc" id="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel_html_a06868c9f11737065bfb37cb9d37579e7"><div class="ttname"><a href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel.html#a06868c9f11737065bfb37cb9d37579e7">com.google.ortools.constraintsolver.RoutingModel.isEnd</a></div><div class="ttdeci">boolean isEnd(long index)</div><div class="ttdef"><b>Definition:</b> <a href="RoutingModel_8java_source.html#l00428">RoutingModel.java:428</a></div></div>
<div class="ttc" id="namespacecom_1_1google_1_1ortools_1_1constraintsolver_html"><div class="ttname"><a href="namespacecom_1_1google_1_1ortools_1_1constraintsolver.html">com.google.ortools.constraintsolver</a></div><div class="ttdef"><b>Definition:</b> <a href="Assignment_8java_source.html#l00009">Assignment.java:9</a></div></div>
<div class="ttc" id="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1Assignment_html_a889aac7c3b3286a2342d7cebcad17dd8"><div class="ttname"><a href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1Assignment.html#a889aac7c3b3286a2342d7cebcad17dd8">com.google.ortools.constraintsolver.Assignment.value</a></div><div class="ttdeci">long value(IntVar var)</div><div class="ttdef"><b>Definition:</b> <a href="Assignment_8java_source.html#l00161">Assignment.java:161</a></div></div>
<div class="ttc" id="enumcom_1_1google_1_1ortools_1_1constraintsolver_1_1FirstSolutionStrategy_1_1Value_html_a36bae5ade0433aa2bdfd57daf1374a3c"><div class="ttname"><a href="enumcom_1_1google_1_1ortools_1_1constraintsolver_1_1FirstSolutionStrategy_1_1Value.html#a36bae5ade0433aa2bdfd57daf1374a3c">com.google.ortools.constraintsolver.FirstSolutionStrategy.Value.PATH_CHEAPEST_ARC</a></div><div class="ttdeci">PATH_CHEAPEST_ARC</div><div class="ttdef"><b>Definition:</b> <a href="FirstSolutionStrategy_8java_source.html#l00112">FirstSolutionStrategy.java:112</a></div></div>
<div class="ttc" id="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel_html_a378cc028968a8e960a8a34b5d5d80956"><div class="ttname"><a href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel.html#a378cc028968a8e960a8a34b5d5d80956">com.google.ortools.constraintsolver.RoutingModel.setArcCostEvaluatorOfAllVehicles</a></div><div class="ttdeci">void setArcCostEvaluatorOfAllVehicles(int evaluator_index)</div><div class="ttdef"><b>Definition:</b> <a href="RoutingModel_8java_source.html#l00235">RoutingModel.java:235</a></div></div>
<div class="ttc" id="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1Assignment_html"><div class="ttname"><a href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1Assignment.html">com.google.ortools.constraintsolver.Assignment</a></div><div class="ttdef"><b>Definition:</b> <a href="Assignment_8java_source.html#l00011">Assignment.java:11</a></div></div>
<div class="ttc" id="namespacecom_1_1google_html"><div class="ttname"><a href="namespacecom_1_1google.html">com.google</a></div></div>
<div class="ttc" id="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel_html_aeee491a70bc08d4814a80fd207091d05"><div class="ttname"><a href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingModel.html#aeee491a70bc08d4814a80fd207091d05">com.google.ortools.constraintsolver.RoutingModel.nextVar</a></div><div class="ttdeci">IntVar nextVar(long index)</div><div class="ttdef"><b>Definition:</b> <a href="RoutingModel_8java_source.html#l00452">RoutingModel.java:452</a></div></div>
<div class="ttc" id="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingIndexManager_html_af943d115205ced5b3495a722330c709b"><div class="ttname"><a href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingIndexManager.html#af943d115205ced5b3495a722330c709b">com.google.ortools.constraintsolver.RoutingIndexManager.indexToNode</a></div><div class="ttdeci">int indexToNode(long index)</div><div class="ttdef"><b>Definition:</b> <a href="RoutingIndexManager_8java_source.html#l00066">RoutingIndexManager.java:66</a></div></div>
<div class="ttc" id="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingSearchParameters_html_a02f100cb6b7dba5d3f67c71d126ec945"><div class="ttname"><a href="classcom_1_1google_1_1ortools_1_1constraintsolver_1_1RoutingSearchParameters.html#a02f100cb6b7dba5d3f67c71d126ec945">com.google.ortools.constraintsolver.RoutingSearchParameters.toBuilder</a></div><div class="ttdeci">.lang.Override Builder toBuilder()</div><div class="ttdef"><b>Definition:</b> <a href="RoutingSearchParameters_8java_source.html#l06493">RoutingSearchParameters.java:6493</a></div></div>
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