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<div class="headertitle"><div class="title">strand_sort.cpp</div></div>
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<a href="../../dc/dd9/strand__sort_8cpp.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></div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#include <iostream></span></div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#include <list></span></div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span></div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="keyword">namespace </span><a class="code hl_namespace" href="../../d5/d91/namespacesorting.html">sorting</a> {</div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">namespace </span><a class="code hl_namespace" href="../../d8/d1d/namespacestrand.html">strand</a> {</div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="foldopen" id="foldopen00036" data-start="{" data-end="}">
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"><a class="line" href="../../dc/dd9/strand__sort_8cpp.html#a2bea2fe5dd38ed63610fdeaddf5785cd"> 36</a></span> std::list<T> <a class="code hl_function" href="../../dc/dd9/strand__sort_8cpp.html#a2bea2fe5dd38ed63610fdeaddf5785cd">strand_sort</a>(std::list<T> lst) {</div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> <span class="keywordflow">if</span> (lst.size() < 2) { <span class="comment">// Returns list if empty or contains only one element</span></div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> <span class="keywordflow">return</span> lst; <span class="comment">// Returns list</span></div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> }</div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> std::list<T> result; <span class="comment">// Define new "result" named list instance.</span></div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> std::list<T> sorted; <span class="comment">// Define new "sorted" named list instance.</span></div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> <span class="keywordflow">while</span>(!lst.empty()) <span class="comment">/* if lst is not empty */</span> {</div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> sorted.push_back(lst.front()); <span class="comment">// Adds the first element of "lst" list to the bottom of the "sorted" list.</span></div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> lst.pop_front(); <span class="comment">// Remove first element of "lst" list.</span></div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <span class="keywordflow">for</span> (<span class="keyword">auto</span> it = lst.begin(); it != lst.end(); ) { <span class="comment">// Return the loop as long as the current iterator is not equal to the last literator of the "lst" list.</span></div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <span class="keywordflow">if</span> (sorted.back() <= *it) { <span class="comment">// If the last reference of the "sorted" list is less than or equal to the current iterator reference.</span></div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> sorted.push_back(*it); <span class="comment">// Adds the iterator retrieved in the loop under the "sorted" list.</span></div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> it = lst.erase(it); <span class="comment">// Deletes the element with the current iterator and assigns the deleted element to the iterator.</span></div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> it++; <span class="comment">// Next iterator.</span></div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> }</div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> }</div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> result.merge(sorted); <span class="comment">// Merge "result" list with "sorted" list.</span></div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> }</div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <span class="keywordflow">return</span> result; <span class="comment">// Returns sorted list</span></div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> }</div>
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</div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> } <span class="comment">// namespace strand</span></div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span>} <span class="comment">// namespace sorting</span></div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span></div>
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<div class="foldopen" id="foldopen00064" data-start="{" data-end="}">
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"><a class="line" href="../../dc/dd9/strand__sort_8cpp.html#aa8dca7b867074164d5f45b0f3851269d"> 64</a></span><span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code hl_function" href="../../dc/dd9/strand__sort_8cpp.html#aa8dca7b867074164d5f45b0f3851269d">test</a>() {</div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> std::list<int> lst = { -333, 525, 1, 0, 94, 52, 33 };</div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> </div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> std::cout << <span class="stringliteral">"Before: "</span>;</div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> <span class="keywordflow">for</span>(<span class="keyword">auto</span> item: lst) {</div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> std::cout << item << <span class="stringliteral">" "</span>;</div>
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<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> }</div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> </div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> lst = <a class="code hl_function" href="../../dc/dd9/strand__sort_8cpp.html#a2bea2fe5dd38ed63610fdeaddf5785cd">sorting::strand::strand_sort</a>(lst); <span class="comment">// Sort list.</span></div>
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<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> </div>
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<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> std::cout << <span class="stringliteral">"\nAfter: "</span>;</div>
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<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <span class="keywordflow">for</span>(<span class="keyword">auto</span> item: lst) {</div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> std::cout << item << <span class="stringliteral">" "</span>;</div>
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<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> }</div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span>}</div>
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</div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span></div>
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<div class="foldopen" id="foldopen00084" data-start="{" data-end="}">
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<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"><a class="line" href="../../dc/dd9/strand__sort_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4"> 84</a></span><span class="keywordtype">int</span> <a class="code hl_function" href="../../dc/dd9/strand__sort_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a>() {</div>
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<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <a class="code hl_function" href="../../dc/dd9/strand__sort_8cpp.html#aa8dca7b867074164d5f45b0f3851269d">test</a>();</div>
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<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> <span class="keywordflow">return</span> 0;</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>
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<div class="ttc" id="anamespacesorting_html"><div class="ttname"><a href="../../d5/d91/namespacesorting.html">sorting</a></div><div class="ttdoc">for working with vectors</div></div>
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<div class="ttc" id="anamespacestrand_html"><div class="ttname"><a href="../../d8/d1d/namespacestrand.html">strand</a></div><div class="ttdoc">Functions for Strand Sort algorithm.</div></div>
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<div class="ttc" id="astrand__sort_8cpp_html_a2bea2fe5dd38ed63610fdeaddf5785cd"><div class="ttname"><a href="../../dc/dd9/strand__sort_8cpp.html#a2bea2fe5dd38ed63610fdeaddf5785cd">sorting::strand::strand_sort</a></div><div class="ttdeci">std::list< T > strand_sort(std::list< T > lst)</div><div class="ttdoc">Apply sorting.</div><div class="ttdef"><b>Definition</b> <a href="#l00036">strand_sort.cpp:36</a></div></div>
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<div class="ttc" id="astrand__sort_8cpp_html_aa8dca7b867074164d5f45b0f3851269d"><div class="ttname"><a href="../../dc/dd9/strand__sort_8cpp.html#aa8dca7b867074164d5f45b0f3851269d">test</a></div><div class="ttdeci">static void test()</div><div class="ttdoc">Function for testing.</div><div class="ttdef"><b>Definition</b> <a href="#l00064">strand_sort.cpp:64</a></div></div>
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<div class="ttc" id="astrand__sort_8cpp_html_ae66f6b31b5ad750f1fe042a706a4e3d4"><div class="ttname"><a href="../../dc/dd9/strand__sort_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a></div><div class="ttdeci">int main()</div><div class="ttdoc">Main function.</div><div class="ttdef"><b>Definition</b> <a href="#l00084">strand_sort.cpp:84</a></div></div>
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