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<a href="dynamic__partition_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">// Copyright 2010-2021 Google LLC</span></div>
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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="comment">// TODO(user): refine this toplevel comment when this file settles.</span></div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="comment">//</span></div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="comment">// Two dynamic partition classes: one that incrementally splits a partition</span></div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="comment">// into more and more parts; one that incrementally merges a partition into less</span></div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="comment">// and less parts.</span></div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="comment">//</span></div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="comment">// GLOSSARY:</span></div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="comment">// The partition classes maintain a partition of N integers 0..N-1</span></div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="comment">// (aka "elements") into disjoint equivalence classes (aka "parts").</span></div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="comment">//</span></div>
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<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="comment">// SAFETY:</span></div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="comment">// Like vector<int> crashes when used improperly, these classes are not "safe":</span></div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="comment">// most of their methods may crash if called with invalid arguments. The client</span></div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="comment">// code is responsible for using this class properly. A few DCHECKs() will help</span></div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="comment">// catch bugs, though.</span></div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> </div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="preprocessor">#ifndef OR_TOOLS_ALGORITHMS_DYNAMIC_PARTITION_H_</span></div>
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<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="preprocessor">#define OR_TOOLS_ALGORITHMS_DYNAMIC_PARTITION_H_</span></div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> </div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="preprocessor">#include <cstdint></span></div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="preprocessor">#include <string></span></div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="preprocessor">#include <vector></span></div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> </div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span><span class="preprocessor">#include "ortools/base/logging.h"</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><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="l00040" name="l00040"></a><span class="lineno"> 40</span> </div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span><span class="comment">// Partition class that supports incremental splitting, with backtracking.</span></div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span><span class="comment">// See http://en.wikipedia.org/wiki/Partition_refinement .</span></div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span><span class="comment">// More precisely, the supported edit operations are:</span></div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span><span class="comment">// - Refine the partition so that a subset S (typically, |S| <<< N)</span></div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span><span class="comment">// of elements are all considered non-equivalent to any element in ¬S.</span></div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span><span class="comment">// Typically, this should be done in O(|S|).</span></div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span><span class="comment">// - Undo the above operations (backtracking).</span></div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span><span class="comment">//</span></div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span><span class="comment">// TODO(user): rename this to BacktrackableSplittingPartition.</span></div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_dynamic_partition.html"> 50</a></span><span class="keyword">class </span><a class="code hl_class" href="classoperations__research_1_1_dynamic_partition.html">DynamicPartition</a> {</div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="keyword">public</span>:</div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="comment">// Creates a DynamicPartition on n elements, numbered 0..n-1. Start with</span></div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <span class="comment">// the trivial partition (only one subset containing all elements).</span></div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_dynamic_partition.html#ac86affffe0db21281ab1db3b23bbebc8"> 54</a></span> <span class="keyword">explicit</span> <a class="code hl_function" href="classoperations__research_1_1_dynamic_partition.html#ac86affffe0db21281ab1db3b23bbebc8">DynamicPartition</a>(<span class="keywordtype">int</span> num_elements);</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> <span class="comment">// Ditto, but specify the initial part of each elements. Part indices must</span></div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> <span class="comment">// form a dense integer set starting at 0; eg. [2, 1, 0, 1, 1, 3, 0] is valid.</span></div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_dynamic_partition.html#a283c8e838eafb240eb24283ab4288254"> 58</a></span> <span class="keyword">explicit</span> <a class="code hl_function" href="classoperations__research_1_1_dynamic_partition.html#a283c8e838eafb240eb24283ab4288254">DynamicPartition</a>(<span class="keyword">const</span> std::vector<int>& initial_part_of_element);</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="comment">// Accessors.</span></div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_dynamic_partition.html#a84daba977c20d7a54c86ef77e8986267"> 61</a></span> <span class="keywordtype">int</span> <a class="code hl_function" href="classoperations__research_1_1_dynamic_partition.html#a84daba977c20d7a54c86ef77e8986267">NumElements</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> element_.size(); }</div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_dynamic_partition.html#ae91b7d9b6c4f0675b9ad3f38e5761853"> 62</a></span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code hl_function" href="classoperations__research_1_1_dynamic_partition.html#ae91b7d9b6c4f0675b9ad3f38e5761853">NumParts</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> part_.size(); }</div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> </div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> <span class="comment">// To iterate over the elements in part #i:</span></div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="comment">// for (int element : partition.ElementsInPart(i)) { ... }</span></div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="comment">//</span></div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> <span class="comment">// ORDERING OF ELEMENTS INSIDE PARTS: the order of elements within a given</span></div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> <span class="comment">// part is volatile, and may change with Refine() or UndoRefine*() operations,</span></div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> <span class="comment">// even if the part itself doesn't change.</span></div>
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<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> <span class="keyword">struct </span>IterablePart;</div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> IterablePart <a class="code hl_function" href="classoperations__research_1_1_dynamic_partition.html#a11ea4d0620bbdca30b7d9b8a23f8cdd8">ElementsInPart</a>(<span class="keywordtype">int</span> i) <span class="keyword">const</span>;</div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> </div>
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<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> <span class="keywordtype">int</span> <a class="code hl_function" href="classoperations__research_1_1_dynamic_partition.html#ab22d95d31ef6edfd5a6770ff6d8c4f04">PartOf</a>(<span class="keywordtype">int</span> element) <span class="keyword">const</span>;</div>
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<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> <span class="keywordtype">int</span> <a class="code hl_function" href="classoperations__research_1_1_dynamic_partition.html#a5634a596b0aa63843c28e8ed69e653ca">SizeOfPart</a>(<span class="keywordtype">int</span> part) <span class="keyword">const</span>;</div>
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<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <span class="keywordtype">int</span> <a class="code hl_function" href="classoperations__research_1_1_dynamic_partition.html#ab8257c32911b0b991bec1af210d993be">ParentOfPart</a>(<span class="keywordtype">int</span> part) <span class="keyword">const</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> <span class="comment">// A handy shortcut to ElementsInPart(PartOf(e)). The returned IterablePart</span></div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> <span class="comment">// will never be empty, since it contains at least i.</span></div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> IterablePart <a class="code hl_function" href="classoperations__research_1_1_dynamic_partition.html#a897ee69dceefdd60a6a4e90ab8b18a25">ElementsInSamePartAs</a>(<span class="keywordtype">int</span> i) <span class="keyword">const</span>;</div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> </div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> <span class="comment">// Returns a fingerprint of the given part. While collisions are possible,</span></div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> <span class="comment">// their probability is quite low. Two parts that have the same size and the</span></div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> <span class="comment">// same fingerprint are most likely identical.</span></div>
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<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> <span class="comment">// Also, two parts that have the exact same set of elements will *always*</span></div>
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<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <span class="comment">// have the same fingerprint.</span></div>
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<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> uint64_t <a class="code hl_function" href="classoperations__research_1_1_dynamic_partition.html#a9b5c93a4cf6d2e548d76291fe7ba5b5d">FprintOfPart</a>(<span class="keywordtype">int</span> part) <span class="keyword">const</span>;</div>
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<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> </div>
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<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> <span class="comment">// Refines the partition such that elements that are in distinguished_subset</span></div>
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<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> <span class="comment">// never share the same part as elements that aren't in that subset.</span></div>
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<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <span class="comment">// This might be a no-op: in that case, NumParts() won't change, but the</span></div>
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<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <span class="comment">// order of elements inside each part may change.</span></div>
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<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <span class="comment">//</span></div>
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<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> <span class="comment">// ORDERING OF PARTS:</span></div>
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<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="comment">// For each i such that Part #i has a non-trivial intersection with</span></div>
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<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="comment">// "distinguished_subset" (neither empty, nor the full Part); Part #i is</span></div>
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<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> <span class="comment">// stripped out of all elements that are in "distinguished_subset", and</span></div>
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<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <span class="comment">// those elements are sent to a newly created part, whose parent_part = i.</span></div>
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<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="comment">// The parts newly created by a single Refine() operations are sorted</span></div>
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<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> <span class="comment">// by parent_part.</span></div>
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<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> <span class="comment">// Example: a Refine() on a partition with 6 parts causes parts #1, #3 and</span></div>
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> <span class="comment">// #4 to be split: the partition will now contain 3 new parts: part #6 (with</span></div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <span class="comment">// parent_part = 1), part #7 (with parent_part = 3) and part #8 (with</span></div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <span class="comment">// parent_part = 4).</span></div>
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<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> <span class="comment">//</span></div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> <span class="comment">// TODO(user): the graph symmetry finder could probably benefit a lot from</span></div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <span class="comment">// keeping track of one additional bit of information for each part that</span></div>
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<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <span class="comment">// remains unchanged by a Refine() operation: was that part entirely *in*</span></div>
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<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> <span class="comment">// the distinguished subset or entirely *out*?</span></div>
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<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_dynamic_partition.html#a32f3aa9643111b05108d1120e48c1e13"> 109</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1_dynamic_partition.html#a32f3aa9643111b05108d1120e48c1e13">Refine</a>(<span class="keyword">const</span> std::vector<int>& distinguished_subset);</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> <span class="comment">// Undo one or several Refine() operations, until the number of parts</span></div>
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<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> <span class="comment">// becomes equal to "original_num_parts".</span></div>
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<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> <span class="comment">// Prerequisite: NumParts() >= original_num_parts.</span></div>
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<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_dynamic_partition.html#a59a35941a5a6eb3747faddb449a49e2a"> 114</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1_dynamic_partition.html#a59a35941a5a6eb3747faddb449a49e2a">UndoRefineUntilNumPartsEqual</a>(<span class="keywordtype">int</span> original_num_parts);</div>
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<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> </div>
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<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> <span class="comment">// Dump the partition to a string. There might be different conventions for</span></div>
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<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> <span class="comment">// sorting the parts and the elements inside them.</span></div>
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<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_dynamic_partition.html#a5d89f8571b04ded41d29edffdb479199"> 118</a></span> <span class="keyword">enum</span> <a class="code hl_enumeration" href="classoperations__research_1_1_dynamic_partition.html#a5d89f8571b04ded41d29edffdb479199">DebugStringSorting</a> {</div>
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<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> <span class="comment">// Elements are sorted within parts, and parts are then sorted</span></div>
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<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> <span class="comment">// lexicographically.</span></div>
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<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_dynamic_partition.html#a5d89f8571b04ded41d29edffdb479199aa3c9e40c9ce46fe6b0a9352db7240b6f"> 121</a></span> <a class="code hl_enumvalue" href="classoperations__research_1_1_dynamic_partition.html#a5d89f8571b04ded41d29edffdb479199aa3c9e40c9ce46fe6b0a9352db7240b6f">SORT_LEXICOGRAPHICALLY</a>,</div>
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<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> <span class="comment">// Elements are sorted within parts, and parts are kept in order.</span></div>
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<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_dynamic_partition.html#a5d89f8571b04ded41d29edffdb479199a6f2cdeb376ad23fd9f0d1164c25a0306"> 123</a></span> <a class="code hl_enumvalue" href="classoperations__research_1_1_dynamic_partition.html#a5d89f8571b04ded41d29edffdb479199a6f2cdeb376ad23fd9f0d1164c25a0306">SORT_BY_PART</a>,</div>
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<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> };</div>
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<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_dynamic_partition.html#ad07c56b1579801daaf3a9a750d26e792"> 125</a></span> std::string <a class="code hl_function" href="classoperations__research_1_1_dynamic_partition.html#ad07c56b1579801daaf3a9a750d26e792">DebugString</a>(<a class="code hl_enumeration" href="classoperations__research_1_1_dynamic_partition.html#a5d89f8571b04ded41d29edffdb479199">DebugStringSorting</a> sorting) <span class="keyword">const</span>;</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> <span class="comment">// ADVANCED USAGE:</span></div>
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<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> <span class="comment">// All elements (0..n-1) of the partition, sorted in a way that's compatible</span></div>
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<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> <span class="comment">// with the hierarchical partitioning:</span></div>
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<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> <span class="comment">// - All the elements of any given part are contiguous.</span></div>
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<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="comment">// - Elements of a part P are always after elements of part Parent(P).</span></div>
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<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <span class="comment">// - The order remains identical (and the above property holds) after any</span></div>
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<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> <span class="comment">// UndoRefine*() operation.</span></div>
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<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> <span class="comment">// Note that the order does get changed by Refine() operations.</span></div>
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<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> <span class="comment">// This is a reference, so it'll only remain valid and constant until the</span></div>
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<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> <span class="comment">// class is destroyed or until Refine() get called.</span></div>
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<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_dynamic_partition.html#ad8a3eb5fa76f501ec96f1664fc899c3b"> 137</a></span> <span class="keyword">const</span> std::vector<int>& <a class="code hl_function" href="classoperations__research_1_1_dynamic_partition.html#ad8a3eb5fa76f501ec96f1664fc899c3b">ElementsInHierarchicalOrder</a>()<span class="keyword"> const </span>{</div>
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<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <span class="keywordflow">return</span> element_;</div>
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<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> }</div>
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<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> </div>
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<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> <span class="keyword">private</span>:</div>
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<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> <span class="comment">// A DynamicPartition instance maintains a list of all of its elements,</span></div>
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<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> <span class="comment">// 'sorted' by partitions: elements of the same subset are contiguous</span></div>
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<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> <span class="comment">// in that list.</span></div>
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<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> std::vector<int> element_;</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> <span class="comment">// The reverse of elements_[]: element_[index_of_[i]] = i.</span></div>
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<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> std::vector<int> index_of_;</div>
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<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> </div>
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<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> <span class="comment">// part_of_[i] is the index of the part that contains element i.</span></div>
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<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> std::vector<int> part_of_;</div>
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<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> </div>
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<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> <span class="keyword">struct </span>Part {</div>
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<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> <span class="comment">// This part holds elements[start_index .. end_index-1].</span></div>
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<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> <span class="comment">// INVARIANT: end_index > start_index.</span></div>
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<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> <span class="keywordtype">int</span> start_index; <span class="comment">// Inclusive</span></div>
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<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> <span class="keywordtype">int</span> end_index; <span class="comment">// Exclusive</span></div>
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<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> </div>
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<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> <span class="comment">// The Part that this part was split out of. See the comment at Refine().</span></div>
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<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> <span class="comment">// INVARIANT: part[i].parent_part <= i, and the equality holds iff part[i]</span></div>
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<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> <span class="comment">// has no parent.</span></div>
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<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> <span class="keywordtype">int</span> parent_part; <span class="comment">// Index into the part[] array.</span></div>
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<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> </div>
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<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> <span class="comment">// The part's fingerprint is the XOR of all fingerprints of its elements.</span></div>
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<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> <span class="comment">// See FprintOfInt32() in the .cc.</span></div>
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<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> uint64_t fprint;</div>
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<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> </div>
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<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> Part() : start_index(0), end_index(0), parent_part(0), fprint(0) {}</div>
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<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> Part(<span class="keywordtype">int</span> start_index, <span class="keywordtype">int</span> end_index, <span class="keywordtype">int</span> parent_part, uint64_t fprint)</div>
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<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> : start_index(start_index),</div>
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<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> end_index(end_index),</div>
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<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> parent_part(parent_part),</div>
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<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> fprint(fprint) {}</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> std::vector<Part> part_; <span class="comment">// The disjoint parts.</span></div>
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<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> </div>
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<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> <span class="comment">// Used temporarily and exclusively by Refine(). This prevents Refine()</span></div>
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<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> <span class="comment">// from being thread-safe.</span></div>
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<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> <span class="comment">// INVARIANT: tmp_counter_of_part_ contains only 0s before and after Refine().</span></div>
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<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> std::vector<int> tmp_counter_of_part_;</div>
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<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> std::vector<int> tmp_affected_parts_;</div>
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<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span>};</div>
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<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> </div>
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<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"><a class="line" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html"> 184</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html">DynamicPartition::IterablePart</a> {</div>
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<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"><a class="line" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#a895e8e66079521889215308182c5591b"> 185</a></span> std::vector<int>::const_iterator <a class="code hl_function" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#a895e8e66079521889215308182c5591b">begin</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code hl_variable" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#a5da1f91bd5693e0c84132f6eec873cc1">begin_</a>; }</div>
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<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"><a class="line" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#a4e37f070051346d7cd493425490c175e"> 186</a></span> std::vector<int>::const_iterator <a class="code hl_function" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#a4e37f070051346d7cd493425490c175e">end</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code hl_variable" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#ac6a060188c6c10f9609b85fd6bc9f15d">end_</a>; }</div>
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<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"><a class="line" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#a5da1f91bd5693e0c84132f6eec873cc1"> 187</a></span> std::vector<int>::const_iterator <a class="code hl_variable" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#a5da1f91bd5693e0c84132f6eec873cc1">begin_</a>;</div>
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<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"><a class="line" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#ac6a060188c6c10f9609b85fd6bc9f15d"> 188</a></span> std::vector<int>::const_iterator <a class="code hl_variable" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#ac6a060188c6c10f9609b85fd6bc9f15d">end_</a>;</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"><a class="line" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#af9593d4a5ff4274efaf429cb4f9e57cc"> 190</a></span> <span class="keywordtype">int</span> <a class="code hl_function" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#af9593d4a5ff4274efaf429cb4f9e57cc">size</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code hl_variable" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#ac6a060188c6c10f9609b85fd6bc9f15d">end_</a> - <a class="code hl_variable" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#a5da1f91bd5693e0c84132f6eec873cc1">begin_</a>; }</div>
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<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> </div>
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<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"><a class="line" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#ac32d6a4490f60f95983b0844091fcbac"> 192</a></span> <a class="code hl_function" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#ac32d6a4490f60f95983b0844091fcbac">IterablePart</a>() {}</div>
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<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"><a class="line" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#ab94e3d7f669e4c1b2c8e6d73e5cf154d"> 193</a></span> <a class="code hl_function" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#ab94e3d7f669e4c1b2c8e6d73e5cf154d">IterablePart</a>(<span class="keyword">const</span> std::vector<int>::const_iterator& b,</div>
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<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> <span class="keyword">const</span> std::vector<int>::const_iterator& e)</div>
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<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> : <a class="code hl_variable" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#a5da1f91bd5693e0c84132f6eec873cc1">begin_</a>(b), <a class="code hl_variable" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#ac6a060188c6c10f9609b85fd6bc9f15d">end_</a>(e) {}</div>
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<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> </div>
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<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> <span class="comment">// These typedefs allow this iterator to be used within testing::ElementsAre.</span></div>
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<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"><a class="line" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#a1183625e61d46f8e98a980720c684146"> 198</a></span> <span class="keyword">typedef</span> <span class="keywordtype">int</span> <a class="code hl_typedef" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#a1183625e61d46f8e98a980720c684146">value_type</a>;</div>
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<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"><a class="line" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#a5a85aaf56880f04a078dc182410090df"> 199</a></span> <span class="keyword">typedef</span> std::vector<int>::const_iterator <a class="code hl_typedef" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#a5a85aaf56880f04a078dc182410090df">const_iterator</a>;</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><span class="comment">// Partition class that supports incremental merging, using the union-find</span></div>
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<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span><span class="comment">// algorithm (see http://en.wikipedia.org/wiki/Disjoint-set_data_structure).</span></div>
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<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_merging_partition.html"> 204</a></span><span class="keyword">class </span><a class="code hl_class" href="classoperations__research_1_1_merging_partition.html">MergingPartition</a> {</div>
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<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> <span class="keyword">public</span>:</div>
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<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> <span class="comment">// At first, all nodes are in their own singleton part.</span></div>
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<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_merging_partition.html#a4aae0995dc07af7b81fb97104921328d"> 207</a></span> <a class="code hl_function" href="classoperations__research_1_1_merging_partition.html#a4aae0995dc07af7b81fb97104921328d">MergingPartition</a>() { <a class="code hl_function" href="classoperations__research_1_1_merging_partition.html#a50eca19efa71a0b70de25f9ad4a2a6f8">Reset</a>(0); }</div>
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<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_merging_partition.html#ac74287c1a8a25271ceeac05c740f6a12"> 208</a></span> <span class="keyword">explicit</span> <a class="code hl_function" href="classoperations__research_1_1_merging_partition.html#ac74287c1a8a25271ceeac05c740f6a12">MergingPartition</a>(<span class="keywordtype">int</span> num_nodes) { <a class="code hl_function" href="classoperations__research_1_1_merging_partition.html#a50eca19efa71a0b70de25f9ad4a2a6f8">Reset</a>(num_nodes); }</div>
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<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_merging_partition.html#a50eca19efa71a0b70de25f9ad4a2a6f8"> 209</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1_merging_partition.html#a50eca19efa71a0b70de25f9ad4a2a6f8">Reset</a>(<span class="keywordtype">int</span> num_nodes);</div>
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<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> </div>
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<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_merging_partition.html#af7b62ca470d8de1c1dde577b04671fa7"> 211</a></span> <span class="keywordtype">int</span> <a class="code hl_function" href="classoperations__research_1_1_merging_partition.html#af7b62ca470d8de1c1dde577b04671fa7">NumNodes</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> parent_.size(); }</div>
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<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> </div>
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<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> <span class="comment">// Complexity: amortized O(Ackermann⁻¹(N)) -- which is essentially O(1) --</span></div>
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<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> <span class="comment">// where N is the number of nodes.</span></div>
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<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> <span class="comment">//</span></div>
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<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> <span class="comment">// Return value: If this merge caused a representative node (of either node1</span></div>
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<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> <span class="comment">// or node2) to stop being a representative (because only one can remain);</span></div>
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<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> <span class="comment">// this method returns that removed representative. Otherwise it returns -1.</span></div>
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<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> <span class="comment">//</span></div>
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<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span> <span class="comment">// Details: a smaller part will always be merged onto a larger one.</span></div>
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<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> <span class="comment">// Upons ties, the smaller representative becomes the overall representative.</span></div>
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<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_merging_partition.html#a612bd8d97219124a8d6fbac721bcdbc6"> 222</a></span> <span class="keywordtype">int</span> <a class="code hl_function" href="classoperations__research_1_1_merging_partition.html#a612bd8d97219124a8d6fbac721bcdbc6">MergePartsOf</a>(<span class="keywordtype">int</span> node1, <span class="keywordtype">int</span> node2); <span class="comment">// The 'union' of the union-find.</span></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> <span class="comment">// Get the representative of "node" (a node in the same equivalence class,</span></div>
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<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> <span class="comment">// which will also be returned for any other "node" in the same class).</span></div>
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<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> <span class="comment">// The complexity if the same as MergePartsOf().</span></div>
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<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_merging_partition.html#ac64dbed5d9196b941f3f53862f77309d"> 227</a></span> <span class="keywordtype">int</span> <a class="code hl_function" href="classoperations__research_1_1_merging_partition.html#ac64dbed5d9196b941f3f53862f77309d">GetRootAndCompressPath</a>(<span class="keywordtype">int</span> node);</div>
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<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> </div>
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<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> <span class="comment">// Specialized reader API: prunes "nodes" to only keep at most one node per</span></div>
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<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> <span class="comment">// part: any node which is in the same part as an earlier node will be pruned.</span></div>
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<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_merging_partition.html#a80761f181b521aa284b7e687776b9fde"> 231</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1_merging_partition.html#a80761f181b521aa284b7e687776b9fde">KeepOnlyOneNodePerPart</a>(std::vector<int>* nodes);</div>
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<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> </div>
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<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> <span class="comment">// Output the whole partition as node equivalence classes: if there are K</span></div>
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<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> <span class="comment">// parts and N nodes, node_equivalence_classes[i] will contain the part index</span></div>
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<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> <span class="comment">// (a number in 0..K-1) of node #i. Parts will be sorted by their first node</span></div>
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<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> <span class="comment">// (i.e. node 0 will always be in part 0; then the next node that isn't in</span></div>
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<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> <span class="comment">// part 0 will be in part 1, and so on).</span></div>
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<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> <span class="comment">// Returns the number K of classes.</span></div>
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<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_merging_partition.html#a62cb833403d7861c5badb4de3389e06e"> 239</a></span> <span class="keywordtype">int</span> <a class="code hl_function" href="classoperations__research_1_1_merging_partition.html#a62cb833403d7861c5badb4de3389e06e">FillEquivalenceClasses</a>(std::vector<int>* node_equivalence_classes);</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> <span class="comment">// Dump all components, with nodes sorted within each part and parts</span></div>
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<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> <span class="comment">// sorted lexicographically. Eg. "0 1 3 4 | 2 5 | 6 7 8".</span></div>
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<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_merging_partition.html#a6097c48821f010becb9a6910f4c39288"> 243</a></span> std::string <a class="code hl_function" href="classoperations__research_1_1_merging_partition.html#a6097c48821f010becb9a6910f4c39288">DebugString</a>();</div>
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<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> </div>
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<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> <span class="comment">// Advanced usage: sets 'node' to be in its original singleton. All nodes</span></div>
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<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> <span class="comment">// who may point to 'node' as a parent will remain in an inconsistent state.</span></div>
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<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> <span class="comment">// This can be used to reinitialize a MergingPartition that has been sparsely</span></div>
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<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> <span class="comment">// modified in O(|modifications|).</span></div>
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<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> <span class="comment">// CRASHES IF USED INCORRECTLY.</span></div>
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<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> <span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1_merging_partition.html#a4368033ed0d5b2fc75727265e0c8f2d7">ResetNode</a>(<span class="keywordtype">int</span> node);</div>
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<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> </div>
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<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_merging_partition.html#a3d5f7b1e62f42b574085e671ae6dfb73"> 252</a></span> <span class="keywordtype">int</span> <a class="code hl_function" href="classoperations__research_1_1_merging_partition.html#a3d5f7b1e62f42b574085e671ae6dfb73">NumNodesInSamePartAs</a>(<span class="keywordtype">int</span> node) {</div>
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<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> <span class="keywordflow">return</span> part_size_[<a class="code hl_function" href="classoperations__research_1_1_merging_partition.html#ac64dbed5d9196b941f3f53862f77309d">GetRootAndCompressPath</a>(node)];</div>
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<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> }</div>
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<div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> </div>
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<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span> <span class="comment">// FOR DEBUGGING OR SPECIAL "CONST" ACCESS ONLY:</span></div>
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<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> <span class="comment">// Find the root of the union-find tree with leaf 'node', i.e. its</span></div>
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<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> <span class="comment">// representative node, but don't use path compression.</span></div>
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<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> <span class="comment">// The amortized complexity can be as bad as log(N), as opposed to the</span></div>
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<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> <span class="comment">// version using path compression.</span></div>
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<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> <span class="keywordtype">int</span> <a class="code hl_function" href="classoperations__research_1_1_merging_partition.html#ae3df79e84e453454062c2c3789b7828e">GetRoot</a>(<span class="keywordtype">int</span> node) <span class="keyword">const</span>;</div>
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<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span> </div>
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<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> <span class="keyword">private</span>:</div>
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<div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> <span class="comment">// Along the upwards path from 'node' to its root, set the parent of all</span></div>
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<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> <span class="comment">// nodes (including the root) to 'parent'.</span></div>
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<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> <span class="keywordtype">void</span> SetParentAlongPathToRoot(<span class="keywordtype">int</span> node, <span class="keywordtype">int</span> parent);</div>
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<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> </div>
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<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> std::vector<int> parent_;</div>
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<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> std::vector<int> part_size_;</div>
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<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> </div>
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<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span> <span class="comment">// Used transiently by KeepOnlyOneNodePerPart().</span></div>
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<div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span> std::vector<bool> tmp_part_bit_;</div>
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<div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span>};</div>
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<div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span> </div>
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<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span><span class="comment">// *** Implementation of inline methods of the above classes. ***</span></div>
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<div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span> </div>
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<div class="line"><a id="l00277" name="l00277"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_dynamic_partition.html#a11ea4d0620bbdca30b7d9b8a23f8cdd8"> 277</a></span><span class="keyword">inline</span> <a class="code hl_struct" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html">DynamicPartition::IterablePart</a> <a class="code hl_function" href="classoperations__research_1_1_dynamic_partition.html#a11ea4d0620bbdca30b7d9b8a23f8cdd8">DynamicPartition::ElementsInPart</a>(</div>
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<div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span> <span class="keywordtype">int</span> i)<span class="keyword"> const </span>{</div>
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<div class="line"><a id="l00279" name="l00279"></a><span class="lineno"> 279</span> DCHECK_GE(i, 0);</div>
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<div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span> DCHECK_LT(i, <a class="code hl_function" href="classoperations__research_1_1_dynamic_partition.html#ae91b7d9b6c4f0675b9ad3f38e5761853">NumParts</a>());</div>
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<div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span> <span class="keywordflow">return</span> <a class="code hl_struct" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html">IterablePart</a>(element_.begin() + part_[i].start_index,</div>
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<div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span> element_.begin() + part_[i].end_index);</div>
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<div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span>}</div>
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<div class="line"><a id="l00284" name="l00284"></a><span class="lineno"> 284</span> </div>
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<div class="line"><a id="l00285" name="l00285"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_dynamic_partition.html#ab22d95d31ef6edfd5a6770ff6d8c4f04"> 285</a></span><span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code hl_function" href="classoperations__research_1_1_dynamic_partition.html#ab22d95d31ef6edfd5a6770ff6d8c4f04">DynamicPartition::PartOf</a>(<span class="keywordtype">int</span> element)<span class="keyword"> const </span>{</div>
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<div class="line"><a id="l00286" name="l00286"></a><span class="lineno"> 286</span> DCHECK_GE(element, 0);</div>
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<div class="line"><a id="l00287" name="l00287"></a><span class="lineno"> 287</span> DCHECK_LT(element, part_of_.size());</div>
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<div class="line"><a id="l00288" name="l00288"></a><span class="lineno"> 288</span> <span class="keywordflow">return</span> part_of_[element];</div>
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<div class="line"><a id="l00289" name="l00289"></a><span class="lineno"> 289</span>}</div>
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<div class="line"><a id="l00290" name="l00290"></a><span class="lineno"> 290</span> </div>
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<div class="line"><a id="l00291" name="l00291"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_dynamic_partition.html#a5634a596b0aa63843c28e8ed69e653ca"> 291</a></span><span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code hl_function" href="classoperations__research_1_1_dynamic_partition.html#a5634a596b0aa63843c28e8ed69e653ca">DynamicPartition::SizeOfPart</a>(<span class="keywordtype">int</span> part)<span class="keyword"> const </span>{</div>
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<div class="line"><a id="l00292" name="l00292"></a><span class="lineno"> 292</span> DCHECK_GE(part, 0);</div>
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<div class="line"><a id="l00293" name="l00293"></a><span class="lineno"> 293</span> DCHECK_LT(part, part_.size());</div>
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<div class="line"><a id="l00294" name="l00294"></a><span class="lineno"> 294</span> <span class="keyword">const</span> Part& p = part_[part];</div>
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<div class="line"><a id="l00295" name="l00295"></a><span class="lineno"> 295</span> <span class="keywordflow">return</span> p.end_index - p.start_index;</div>
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<div class="line"><a id="l00296" name="l00296"></a><span class="lineno"> 296</span>}</div>
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<div class="line"><a id="l00297" name="l00297"></a><span class="lineno"> 297</span> </div>
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<div class="line"><a id="l00298" name="l00298"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_dynamic_partition.html#ab8257c32911b0b991bec1af210d993be"> 298</a></span><span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code hl_function" href="classoperations__research_1_1_dynamic_partition.html#ab8257c32911b0b991bec1af210d993be">DynamicPartition::ParentOfPart</a>(<span class="keywordtype">int</span> part)<span class="keyword"> const </span>{</div>
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<div class="line"><a id="l00299" name="l00299"></a><span class="lineno"> 299</span> DCHECK_GE(part, 0);</div>
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<div class="line"><a id="l00300" name="l00300"></a><span class="lineno"> 300</span> DCHECK_LT(part, part_.size());</div>
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<div class="line"><a id="l00301" name="l00301"></a><span class="lineno"> 301</span> <span class="keywordflow">return</span> part_[part].parent_part;</div>
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<div class="line"><a id="l00302" name="l00302"></a><span class="lineno"> 302</span>}</div>
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<div class="line"><a id="l00303" name="l00303"></a><span class="lineno"> 303</span> </div>
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<div class="line"><a id="l00304" name="l00304"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_dynamic_partition.html#a897ee69dceefdd60a6a4e90ab8b18a25"> 304</a></span><span class="keyword">inline</span> <a class="code hl_struct" href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html">DynamicPartition::IterablePart</a> <a class="code hl_function" href="classoperations__research_1_1_dynamic_partition.html#a897ee69dceefdd60a6a4e90ab8b18a25">DynamicPartition::ElementsInSamePartAs</a>(</div>
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<div class="line"><a id="l00305" name="l00305"></a><span class="lineno"> 305</span> <span class="keywordtype">int</span> i)<span class="keyword"> const </span>{</div>
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<div class="line"><a id="l00306" name="l00306"></a><span class="lineno"> 306</span> <span class="keywordflow">return</span> <a class="code hl_function" href="classoperations__research_1_1_dynamic_partition.html#a11ea4d0620bbdca30b7d9b8a23f8cdd8">ElementsInPart</a>(<a class="code hl_function" href="classoperations__research_1_1_dynamic_partition.html#ab22d95d31ef6edfd5a6770ff6d8c4f04">PartOf</a>(i));</div>
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<div class="line"><a id="l00307" name="l00307"></a><span class="lineno"> 307</span>}</div>
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<div class="line"><a id="l00308" name="l00308"></a><span class="lineno"> 308</span> </div>
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<div class="line"><a id="l00309" name="l00309"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_dynamic_partition.html#a9b5c93a4cf6d2e548d76291fe7ba5b5d"> 309</a></span><span class="keyword">inline</span> uint64_t <a class="code hl_function" href="classoperations__research_1_1_dynamic_partition.html#a9b5c93a4cf6d2e548d76291fe7ba5b5d">DynamicPartition::FprintOfPart</a>(<span class="keywordtype">int</span> part)<span class="keyword"> const </span>{</div>
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<div class="line"><a id="l00310" name="l00310"></a><span class="lineno"> 310</span> DCHECK_GE(part, 0);</div>
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<div class="line"><a id="l00311" name="l00311"></a><span class="lineno"> 311</span> DCHECK_LT(part, part_.size());</div>
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<div class="line"><a id="l00312" name="l00312"></a><span class="lineno"> 312</span> <span class="keywordflow">return</span> part_[part].fprint;</div>
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<div class="line"><a id="l00313" name="l00313"></a><span class="lineno"> 313</span>}</div>
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<div class="line"><a id="l00314" name="l00314"></a><span class="lineno"> 314</span> </div>
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<div class="line"><a id="l00315" name="l00315"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_merging_partition.html#ae3df79e84e453454062c2c3789b7828e"> 315</a></span><span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code hl_function" href="classoperations__research_1_1_merging_partition.html#ae3df79e84e453454062c2c3789b7828e">MergingPartition::GetRoot</a>(<span class="keywordtype">int</span> node)<span class="keyword"> const </span>{</div>
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<div class="line"><a id="l00316" name="l00316"></a><span class="lineno"> 316</span> DCHECK_GE(node, 0);</div>
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<div class="line"><a id="l00317" name="l00317"></a><span class="lineno"> 317</span> DCHECK_LT(node, <a class="code hl_function" href="classoperations__research_1_1_merging_partition.html#af7b62ca470d8de1c1dde577b04671fa7">NumNodes</a>());</div>
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<div class="line"><a id="l00318" name="l00318"></a><span class="lineno"> 318</span> <span class="keywordtype">int</span> child = node;</div>
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<div class="line"><a id="l00319" name="l00319"></a><span class="lineno"> 319</span> <span class="keywordflow">while</span> (<span class="keyword">true</span>) {</div>
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<div class="line"><a id="l00320" name="l00320"></a><span class="lineno"> 320</span> <span class="keyword">const</span> <span class="keywordtype">int</span> parent = parent_[child];</div>
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<div class="line"><a id="l00321" name="l00321"></a><span class="lineno"> 321</span> <span class="keywordflow">if</span> (parent == child) <span class="keywordflow">return</span> child;</div>
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<div class="line"><a id="l00322" name="l00322"></a><span class="lineno"> 322</span> child = parent;</div>
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<div class="line"><a id="l00323" name="l00323"></a><span class="lineno"> 323</span> }</div>
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<div class="line"><a id="l00324" name="l00324"></a><span class="lineno"> 324</span>}</div>
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<div class="line"><a id="l00325" name="l00325"></a><span class="lineno"> 325</span> </div>
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<div class="line"><a id="l00326" name="l00326"></a><span class="lineno"> 326</span><span class="keyword">inline</span> <span class="keywordtype">void</span> MergingPartition::SetParentAlongPathToRoot(<span class="keywordtype">int</span> node, <span class="keywordtype">int</span> parent) {</div>
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<div class="line"><a id="l00327" name="l00327"></a><span class="lineno"> 327</span> DCHECK_GE(node, 0);</div>
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<div class="line"><a id="l00328" name="l00328"></a><span class="lineno"> 328</span> DCHECK_LT(node, <a class="code hl_function" href="classoperations__research_1_1_merging_partition.html#af7b62ca470d8de1c1dde577b04671fa7">NumNodes</a>());</div>
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<div class="line"><a id="l00329" name="l00329"></a><span class="lineno"> 329</span> DCHECK_GE(parent, 0);</div>
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<div class="line"><a id="l00330" name="l00330"></a><span class="lineno"> 330</span> DCHECK_LT(parent, <a class="code hl_function" href="classoperations__research_1_1_merging_partition.html#af7b62ca470d8de1c1dde577b04671fa7">NumNodes</a>());</div>
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<div class="line"><a id="l00331" name="l00331"></a><span class="lineno"> 331</span> <span class="keywordtype">int</span> child = node;</div>
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<div class="line"><a id="l00332" name="l00332"></a><span class="lineno"> 332</span> <span class="keywordflow">while</span> (<span class="keyword">true</span>) {</div>
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<div class="line"><a id="l00333" name="l00333"></a><span class="lineno"> 333</span> <span class="keyword">const</span> <span class="keywordtype">int</span> old_parent = parent_[child];</div>
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<div class="line"><a id="l00334" name="l00334"></a><span class="lineno"> 334</span> parent_[child] = parent;</div>
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<div class="line"><a id="l00335" name="l00335"></a><span class="lineno"> 335</span> <span class="keywordflow">if</span> (old_parent == child) <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00336" name="l00336"></a><span class="lineno"> 336</span> child = old_parent;</div>
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<div class="line"><a id="l00337" name="l00337"></a><span class="lineno"> 337</span> }</div>
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<div class="line"><a id="l00338" name="l00338"></a><span class="lineno"> 338</span>}</div>
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<div class="line"><a id="l00339" name="l00339"></a><span class="lineno"> 339</span> </div>
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<div class="line"><a id="l00340" name="l00340"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_merging_partition.html#a4368033ed0d5b2fc75727265e0c8f2d7"> 340</a></span><span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1_merging_partition.html#a4368033ed0d5b2fc75727265e0c8f2d7">MergingPartition::ResetNode</a>(<span class="keywordtype">int</span> node) {</div>
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<div class="line"><a id="l00341" name="l00341"></a><span class="lineno"> 341</span> DCHECK_GE(node, 0);</div>
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<div class="line"><a id="l00342" name="l00342"></a><span class="lineno"> 342</span> DCHECK_LT(node, <a class="code hl_function" href="classoperations__research_1_1_merging_partition.html#af7b62ca470d8de1c1dde577b04671fa7">NumNodes</a>());</div>
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<div class="line"><a id="l00343" name="l00343"></a><span class="lineno"> 343</span> parent_[node] = node;</div>
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<div class="line"><a id="l00344" name="l00344"></a><span class="lineno"> 344</span> part_size_[node] = 1;</div>
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<div class="line"><a id="l00345" name="l00345"></a><span class="lineno"> 345</span>}</div>
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<div class="line"><a id="l00346" name="l00346"></a><span class="lineno"> 346</span> </div>
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<div class="line"><a id="l00347" name="l00347"></a><span class="lineno"> 347</span>} <span class="comment">// namespace operations_research</span></div>
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<div class="line"><a id="l00348" name="l00348"></a><span class="lineno"> 348</span> </div>
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<div class="line"><a id="l00349" name="l00349"></a><span class="lineno"> 349</span><span class="preprocessor">#endif </span><span class="comment">// OR_TOOLS_ALGORITHMS_DYNAMIC_PARTITION_H_</span></div>
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<div class="ttc" id="aclassoperations__research_1_1_dynamic_partition_html"><div class="ttname"><a href="classoperations__research_1_1_dynamic_partition.html">operations_research::DynamicPartition</a></div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00050">dynamic_partition.h:50</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_dynamic_partition_html_a11ea4d0620bbdca30b7d9b8a23f8cdd8"><div class="ttname"><a href="classoperations__research_1_1_dynamic_partition.html#a11ea4d0620bbdca30b7d9b8a23f8cdd8">operations_research::DynamicPartition::ElementsInPart</a></div><div class="ttdeci">IterablePart ElementsInPart(int i) const</div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00277">dynamic_partition.h:277</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_dynamic_partition_html_a283c8e838eafb240eb24283ab4288254"><div class="ttname"><a href="classoperations__research_1_1_dynamic_partition.html#a283c8e838eafb240eb24283ab4288254">operations_research::DynamicPartition::DynamicPartition</a></div><div class="ttdeci">DynamicPartition(const std::vector< int > &initial_part_of_element)</div></div>
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<div class="ttc" id="aclassoperations__research_1_1_dynamic_partition_html_a32f3aa9643111b05108d1120e48c1e13"><div class="ttname"><a href="classoperations__research_1_1_dynamic_partition.html#a32f3aa9643111b05108d1120e48c1e13">operations_research::DynamicPartition::Refine</a></div><div class="ttdeci">void Refine(const std::vector< int > &distinguished_subset)</div></div>
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<div class="ttc" id="aclassoperations__research_1_1_dynamic_partition_html_a5634a596b0aa63843c28e8ed69e653ca"><div class="ttname"><a href="classoperations__research_1_1_dynamic_partition.html#a5634a596b0aa63843c28e8ed69e653ca">operations_research::DynamicPartition::SizeOfPart</a></div><div class="ttdeci">int SizeOfPart(int part) const</div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00291">dynamic_partition.h:291</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_dynamic_partition_html_a59a35941a5a6eb3747faddb449a49e2a"><div class="ttname"><a href="classoperations__research_1_1_dynamic_partition.html#a59a35941a5a6eb3747faddb449a49e2a">operations_research::DynamicPartition::UndoRefineUntilNumPartsEqual</a></div><div class="ttdeci">void UndoRefineUntilNumPartsEqual(int original_num_parts)</div></div>
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<div class="ttc" id="aclassoperations__research_1_1_dynamic_partition_html_a5d89f8571b04ded41d29edffdb479199"><div class="ttname"><a href="classoperations__research_1_1_dynamic_partition.html#a5d89f8571b04ded41d29edffdb479199">operations_research::DynamicPartition::DebugStringSorting</a></div><div class="ttdeci">DebugStringSorting</div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00118">dynamic_partition.h:118</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_dynamic_partition_html_a5d89f8571b04ded41d29edffdb479199a6f2cdeb376ad23fd9f0d1164c25a0306"><div class="ttname"><a href="classoperations__research_1_1_dynamic_partition.html#a5d89f8571b04ded41d29edffdb479199a6f2cdeb376ad23fd9f0d1164c25a0306">operations_research::DynamicPartition::SORT_BY_PART</a></div><div class="ttdeci">@ SORT_BY_PART</div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00123">dynamic_partition.h:123</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_dynamic_partition_html_a5d89f8571b04ded41d29edffdb479199aa3c9e40c9ce46fe6b0a9352db7240b6f"><div class="ttname"><a href="classoperations__research_1_1_dynamic_partition.html#a5d89f8571b04ded41d29edffdb479199aa3c9e40c9ce46fe6b0a9352db7240b6f">operations_research::DynamicPartition::SORT_LEXICOGRAPHICALLY</a></div><div class="ttdeci">@ SORT_LEXICOGRAPHICALLY</div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00121">dynamic_partition.h:121</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_dynamic_partition_html_a84daba977c20d7a54c86ef77e8986267"><div class="ttname"><a href="classoperations__research_1_1_dynamic_partition.html#a84daba977c20d7a54c86ef77e8986267">operations_research::DynamicPartition::NumElements</a></div><div class="ttdeci">int NumElements() const</div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00061">dynamic_partition.h:61</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_dynamic_partition_html_a897ee69dceefdd60a6a4e90ab8b18a25"><div class="ttname"><a href="classoperations__research_1_1_dynamic_partition.html#a897ee69dceefdd60a6a4e90ab8b18a25">operations_research::DynamicPartition::ElementsInSamePartAs</a></div><div class="ttdeci">IterablePart ElementsInSamePartAs(int i) const</div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00304">dynamic_partition.h:304</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_dynamic_partition_html_a9b5c93a4cf6d2e548d76291fe7ba5b5d"><div class="ttname"><a href="classoperations__research_1_1_dynamic_partition.html#a9b5c93a4cf6d2e548d76291fe7ba5b5d">operations_research::DynamicPartition::FprintOfPart</a></div><div class="ttdeci">uint64_t FprintOfPart(int part) const</div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00309">dynamic_partition.h:309</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_dynamic_partition_html_ab22d95d31ef6edfd5a6770ff6d8c4f04"><div class="ttname"><a href="classoperations__research_1_1_dynamic_partition.html#ab22d95d31ef6edfd5a6770ff6d8c4f04">operations_research::DynamicPartition::PartOf</a></div><div class="ttdeci">int PartOf(int element) const</div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00285">dynamic_partition.h:285</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_dynamic_partition_html_ab8257c32911b0b991bec1af210d993be"><div class="ttname"><a href="classoperations__research_1_1_dynamic_partition.html#ab8257c32911b0b991bec1af210d993be">operations_research::DynamicPartition::ParentOfPart</a></div><div class="ttdeci">int ParentOfPart(int part) const</div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00298">dynamic_partition.h:298</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_dynamic_partition_html_ac86affffe0db21281ab1db3b23bbebc8"><div class="ttname"><a href="classoperations__research_1_1_dynamic_partition.html#ac86affffe0db21281ab1db3b23bbebc8">operations_research::DynamicPartition::DynamicPartition</a></div><div class="ttdeci">DynamicPartition(int num_elements)</div></div>
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<div class="ttc" id="aclassoperations__research_1_1_dynamic_partition_html_ad07c56b1579801daaf3a9a750d26e792"><div class="ttname"><a href="classoperations__research_1_1_dynamic_partition.html#ad07c56b1579801daaf3a9a750d26e792">operations_research::DynamicPartition::DebugString</a></div><div class="ttdeci">std::string DebugString(DebugStringSorting sorting) const</div></div>
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<div class="ttc" id="aclassoperations__research_1_1_dynamic_partition_html_ad8a3eb5fa76f501ec96f1664fc899c3b"><div class="ttname"><a href="classoperations__research_1_1_dynamic_partition.html#ad8a3eb5fa76f501ec96f1664fc899c3b">operations_research::DynamicPartition::ElementsInHierarchicalOrder</a></div><div class="ttdeci">const std::vector< int > & ElementsInHierarchicalOrder() const</div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00137">dynamic_partition.h:137</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_dynamic_partition_html_ae91b7d9b6c4f0675b9ad3f38e5761853"><div class="ttname"><a href="classoperations__research_1_1_dynamic_partition.html#ae91b7d9b6c4f0675b9ad3f38e5761853">operations_research::DynamicPartition::NumParts</a></div><div class="ttdeci">const int NumParts() const</div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00062">dynamic_partition.h:62</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_merging_partition_html"><div class="ttname"><a href="classoperations__research_1_1_merging_partition.html">operations_research::MergingPartition</a></div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00204">dynamic_partition.h:204</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_merging_partition_html_a3d5f7b1e62f42b574085e671ae6dfb73"><div class="ttname"><a href="classoperations__research_1_1_merging_partition.html#a3d5f7b1e62f42b574085e671ae6dfb73">operations_research::MergingPartition::NumNodesInSamePartAs</a></div><div class="ttdeci">int NumNodesInSamePartAs(int node)</div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00252">dynamic_partition.h:252</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_merging_partition_html_a4368033ed0d5b2fc75727265e0c8f2d7"><div class="ttname"><a href="classoperations__research_1_1_merging_partition.html#a4368033ed0d5b2fc75727265e0c8f2d7">operations_research::MergingPartition::ResetNode</a></div><div class="ttdeci">void ResetNode(int node)</div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00340">dynamic_partition.h:340</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_merging_partition_html_a4aae0995dc07af7b81fb97104921328d"><div class="ttname"><a href="classoperations__research_1_1_merging_partition.html#a4aae0995dc07af7b81fb97104921328d">operations_research::MergingPartition::MergingPartition</a></div><div class="ttdeci">MergingPartition()</div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00207">dynamic_partition.h:207</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_merging_partition_html_a50eca19efa71a0b70de25f9ad4a2a6f8"><div class="ttname"><a href="classoperations__research_1_1_merging_partition.html#a50eca19efa71a0b70de25f9ad4a2a6f8">operations_research::MergingPartition::Reset</a></div><div class="ttdeci">void Reset(int num_nodes)</div></div>
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<div class="ttc" id="aclassoperations__research_1_1_merging_partition_html_a6097c48821f010becb9a6910f4c39288"><div class="ttname"><a href="classoperations__research_1_1_merging_partition.html#a6097c48821f010becb9a6910f4c39288">operations_research::MergingPartition::DebugString</a></div><div class="ttdeci">std::string DebugString()</div></div>
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<div class="ttc" id="aclassoperations__research_1_1_merging_partition_html_a612bd8d97219124a8d6fbac721bcdbc6"><div class="ttname"><a href="classoperations__research_1_1_merging_partition.html#a612bd8d97219124a8d6fbac721bcdbc6">operations_research::MergingPartition::MergePartsOf</a></div><div class="ttdeci">int MergePartsOf(int node1, int node2)</div></div>
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<div class="ttc" id="aclassoperations__research_1_1_merging_partition_html_a62cb833403d7861c5badb4de3389e06e"><div class="ttname"><a href="classoperations__research_1_1_merging_partition.html#a62cb833403d7861c5badb4de3389e06e">operations_research::MergingPartition::FillEquivalenceClasses</a></div><div class="ttdeci">int FillEquivalenceClasses(std::vector< int > *node_equivalence_classes)</div></div>
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<div class="ttc" id="aclassoperations__research_1_1_merging_partition_html_a80761f181b521aa284b7e687776b9fde"><div class="ttname"><a href="classoperations__research_1_1_merging_partition.html#a80761f181b521aa284b7e687776b9fde">operations_research::MergingPartition::KeepOnlyOneNodePerPart</a></div><div class="ttdeci">void KeepOnlyOneNodePerPart(std::vector< int > *nodes)</div></div>
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<div class="ttc" id="aclassoperations__research_1_1_merging_partition_html_ac64dbed5d9196b941f3f53862f77309d"><div class="ttname"><a href="classoperations__research_1_1_merging_partition.html#ac64dbed5d9196b941f3f53862f77309d">operations_research::MergingPartition::GetRootAndCompressPath</a></div><div class="ttdeci">int GetRootAndCompressPath(int node)</div></div>
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<div class="ttc" id="aclassoperations__research_1_1_merging_partition_html_ac74287c1a8a25271ceeac05c740f6a12"><div class="ttname"><a href="classoperations__research_1_1_merging_partition.html#ac74287c1a8a25271ceeac05c740f6a12">operations_research::MergingPartition::MergingPartition</a></div><div class="ttdeci">MergingPartition(int num_nodes)</div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00208">dynamic_partition.h:208</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_merging_partition_html_ae3df79e84e453454062c2c3789b7828e"><div class="ttname"><a href="classoperations__research_1_1_merging_partition.html#ae3df79e84e453454062c2c3789b7828e">operations_research::MergingPartition::GetRoot</a></div><div class="ttdeci">int GetRoot(int node) const</div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00315">dynamic_partition.h:315</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_merging_partition_html_af7b62ca470d8de1c1dde577b04671fa7"><div class="ttname"><a href="classoperations__research_1_1_merging_partition.html#af7b62ca470d8de1c1dde577b04671fa7">operations_research::MergingPartition::NumNodes</a></div><div class="ttdeci">int NumNodes() const</div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00211">dynamic_partition.h:211</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="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="astructoperations__research_1_1_dynamic_partition_1_1_iterable_part_html"><div class="ttname"><a href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html">operations_research::DynamicPartition::IterablePart</a></div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00184">dynamic_partition.h:184</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1_dynamic_partition_1_1_iterable_part_html_a1183625e61d46f8e98a980720c684146"><div class="ttname"><a href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#a1183625e61d46f8e98a980720c684146">operations_research::DynamicPartition::IterablePart::value_type</a></div><div class="ttdeci">int value_type</div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00198">dynamic_partition.h:198</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1_dynamic_partition_1_1_iterable_part_html_a4e37f070051346d7cd493425490c175e"><div class="ttname"><a href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#a4e37f070051346d7cd493425490c175e">operations_research::DynamicPartition::IterablePart::end</a></div><div class="ttdeci">std::vector< int >::const_iterator end() const</div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00186">dynamic_partition.h:186</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1_dynamic_partition_1_1_iterable_part_html_a5a85aaf56880f04a078dc182410090df"><div class="ttname"><a href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#a5a85aaf56880f04a078dc182410090df">operations_research::DynamicPartition::IterablePart::const_iterator</a></div><div class="ttdeci">std::vector< int >::const_iterator const_iterator</div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00199">dynamic_partition.h:199</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1_dynamic_partition_1_1_iterable_part_html_a5da1f91bd5693e0c84132f6eec873cc1"><div class="ttname"><a href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#a5da1f91bd5693e0c84132f6eec873cc1">operations_research::DynamicPartition::IterablePart::begin_</a></div><div class="ttdeci">std::vector< int >::const_iterator begin_</div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00187">dynamic_partition.h:187</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1_dynamic_partition_1_1_iterable_part_html_a895e8e66079521889215308182c5591b"><div class="ttname"><a href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#a895e8e66079521889215308182c5591b">operations_research::DynamicPartition::IterablePart::begin</a></div><div class="ttdeci">std::vector< int >::const_iterator begin() const</div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00185">dynamic_partition.h:185</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1_dynamic_partition_1_1_iterable_part_html_ab94e3d7f669e4c1b2c8e6d73e5cf154d"><div class="ttname"><a href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#ab94e3d7f669e4c1b2c8e6d73e5cf154d">operations_research::DynamicPartition::IterablePart::IterablePart</a></div><div class="ttdeci">IterablePart(const std::vector< int >::const_iterator &b, const std::vector< int >::const_iterator &e)</div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00193">dynamic_partition.h:193</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1_dynamic_partition_1_1_iterable_part_html_ac32d6a4490f60f95983b0844091fcbac"><div class="ttname"><a href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#ac32d6a4490f60f95983b0844091fcbac">operations_research::DynamicPartition::IterablePart::IterablePart</a></div><div class="ttdeci">IterablePart()</div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00192">dynamic_partition.h:192</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1_dynamic_partition_1_1_iterable_part_html_ac6a060188c6c10f9609b85fd6bc9f15d"><div class="ttname"><a href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#ac6a060188c6c10f9609b85fd6bc9f15d">operations_research::DynamicPartition::IterablePart::end_</a></div><div class="ttdeci">std::vector< int >::const_iterator end_</div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00188">dynamic_partition.h:188</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1_dynamic_partition_1_1_iterable_part_html_af9593d4a5ff4274efaf429cb4f9e57cc"><div class="ttname"><a href="structoperations__research_1_1_dynamic_partition_1_1_iterable_part.html#af9593d4a5ff4274efaf429cb4f9e57cc">operations_research::DynamicPartition::IterablePart::size</a></div><div class="ttdeci">int size() const</div><div class="ttdef"><b>Definition:</b> <a href="dynamic__partition_8h_source.html#l00190">dynamic_partition.h:190</a></div></div>
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