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<title>Algorithms_in_C++: sorting/comb_sort.cpp File Reference</title>
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<div id="projectname">Algorithms_in_C++<span id="projectnumber">&#160;1.0.0</span>
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<div id="projectbrief">Set of algorithms implemented in C++.</div>
@@ -41,7 +41,7 @@ MathJax.Hub.Config({
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@@ -173,36 +173,36 @@ Functions</h2></td></tr>
<p >Keep running until gap = 1 or none elements were swapped</p>
<p >Find next gap</p>
<p ><a class="el" href="../../de/d4a/class_compare.html" title="Comparator class for priority queue.">Compare</a> all elements with current gap</p>
<div class="fragment"><div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> {<span class="comment"></span></div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span><span class="comment"> /**</span></div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span><span class="comment"> *</span></div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span><span class="comment"> * initial gap will be maximum and the maximum possible value is</span></div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span><span class="comment"> * the size of the array that is n and which is equal to r in this</span></div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span><span class="comment"> * case so to avoid passing an extra parameter n that is the size of</span></div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span><span class="comment"> * the array we are using r to initialize the initial gap.</span></div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span><span class="comment"> *</span></div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span><span class="comment"> */</span></div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="keywordtype">int</span> gap = r;</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span><span class="comment"></span> </div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span><span class="comment"> /// Initialize swapped as true to make sure that loop runs</span></div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span><span class="comment"></span> <span class="keywordtype">bool</span> swapped = <span class="keyword">true</span>;</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span><span class="comment"></span> </div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span><span class="comment"> /// Keep running until gap = 1 or none elements were swapped</span></div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span><span class="comment"></span> <span class="keywordflow">while</span> (gap != 1 || swapped) {<span class="comment"></span></div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span><span class="comment"> /// Find next gap</span></div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span><span class="comment"></span> gap = <a class="code hl_function" href="../../d9/dfd/comb__sort_8cpp.html#aede08143e63105faba10e9ee8e745fd5">FindNextGap</a>(gap);</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> </div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> swapped = <span class="keyword">false</span>;</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span><span class="comment"></span> </div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span><span class="comment"> /// Compare all elements with current gap</span></div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span><span class="comment"></span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = l; i &lt; r - gap; ++i) {</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="keywordflow">if</span> (arr[i] &gt; arr[i + gap]) {</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/algorithm/swap.html">std::swap</a>(arr[i], arr[i + gap]);</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> swapped = <span class="keyword">true</span>;</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> }</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> }</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> }</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span>}</div>
<div class="fragment"><div class="line"><span class="lineno"> 42</span> {<span class="comment"></span></div>
<div class="line"><span class="lineno"> 43</span><span class="comment"> /**</span></div>
<div class="line"><span class="lineno"> 44</span><span class="comment"> *</span></div>
<div class="line"><span class="lineno"> 45</span><span class="comment"> * initial gap will be maximum and the maximum possible value is</span></div>
<div class="line"><span class="lineno"> 46</span><span class="comment"> * the size of the array that is n and which is equal to r in this</span></div>
<div class="line"><span class="lineno"> 47</span><span class="comment"> * case so to avoid passing an extra parameter n that is the size of</span></div>
<div class="line"><span class="lineno"> 48</span><span class="comment"> * the array we are using r to initialize the initial gap.</span></div>
<div class="line"><span class="lineno"> 49</span><span class="comment"> *</span></div>
<div class="line"><span class="lineno"> 50</span><span class="comment"> */</span></div>
<div class="line"><span class="lineno"> 51</span> <span class="keywordtype">int</span> gap = r;</div>
<div class="line"><span class="lineno"> 52</span><span class="comment"></span> </div>
<div class="line"><span class="lineno"> 53</span><span class="comment"> /// Initialize swapped as true to make sure that loop runs</span></div>
<div class="line"><span class="lineno"> 54</span><span class="comment"></span> <span class="keywordtype">bool</span> swapped = <span class="keyword">true</span>;</div>
<div class="line"><span class="lineno"> 55</span><span class="comment"></span> </div>
<div class="line"><span class="lineno"> 56</span><span class="comment"> /// Keep running until gap = 1 or none elements were swapped</span></div>
<div class="line"><span class="lineno"> 57</span><span class="comment"></span> <span class="keywordflow">while</span> (gap != 1 || swapped) {<span class="comment"></span></div>
<div class="line"><span class="lineno"> 58</span><span class="comment"> /// Find next gap</span></div>
<div class="line"><span class="lineno"> 59</span><span class="comment"></span> gap = <a class="code hl_function" href="../../d9/dfd/comb__sort_8cpp.html#aede08143e63105faba10e9ee8e745fd5">FindNextGap</a>(gap);</div>
<div class="line"><span class="lineno"> 60</span> </div>
<div class="line"><span class="lineno"> 61</span> swapped = <span class="keyword">false</span>;</div>
<div class="line"><span class="lineno"> 62</span><span class="comment"></span> </div>
<div class="line"><span class="lineno"> 63</span><span class="comment"> /// Compare all elements with current gap</span></div>
<div class="line"><span class="lineno"> 64</span><span class="comment"></span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = l; i &lt; r - gap; ++i) {</div>
<div class="line"><span class="lineno"> 65</span> <span class="keywordflow">if</span> (arr[i] &gt; arr[i + gap]) {</div>
<div class="line"><span class="lineno"> 66</span> <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/algorithm/swap.html">std::swap</a>(arr[i], arr[i + gap]);</div>
<div class="line"><span class="lineno"> 67</span> swapped = <span class="keyword">true</span>;</div>
<div class="line"><span class="lineno"> 68</span> }</div>
<div class="line"><span class="lineno"> 69</span> }</div>
<div class="line"><span class="lineno"> 70</span> }</div>
<div class="line"><span class="lineno"> 71</span>}</div>
<div class="ttc" id="acomb__sort_8cpp_html_aede08143e63105faba10e9ee8e745fd5"><div class="ttname"><a href="../../d9/dfd/comb__sort_8cpp.html#aede08143e63105faba10e9ee8e745fd5">FindNextGap</a></div><div class="ttdeci">int FindNextGap(int gap)</div><div class="ttdef"><b>Definition:</b> comb_sort.cpp:29</div></div>
<div class="ttc" id="aswap_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/algorithm/swap.html">std::swap</a></div><div class="ttdeci">T swap(T... args)</div></div>
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@@ -236,11 +236,11 @@ Here is the call graph for this function:</div>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>new gap </dd></dl>
<div class="fragment"><div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> {</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> gap = (gap * 10) / 13;</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> </div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> <span class="keywordflow">return</span> <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/algorithm/max.html">std::max</a>(1, gap);</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span>}</div>
<div class="fragment"><div class="line"><span class="lineno"> 29</span> {</div>
<div class="line"><span class="lineno"> 30</span> gap = (gap * 10) / 13;</div>
<div class="line"><span class="lineno"> 31</span> </div>
<div class="line"><span class="lineno"> 32</span> <span class="keywordflow">return</span> <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/algorithm/max.html">std::max</a>(1, gap);</div>
<div class="line"><span class="lineno"> 33</span>}</div>
<div class="ttc" id="amax_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/algorithm/max.html">std::max</a></div><div class="ttdeci">T max(T... args)</div></div>
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@@ -269,20 +269,20 @@ Here is the call graph for this function:</div>
<p >Main function </p>
<p >Running predefined tests</p>
<p >For user interaction</p>
<div class="fragment"><div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> {<span class="comment"></span></div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span><span class="comment"> /// Running predefined tests</span></div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span><span class="comment"></span> <a class="code hl_function" href="../../d9/dfd/comb__sort_8cpp.html#a88ec9ad42717780d6caaff9d3d6977f9">tests</a>();</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span><span class="comment"></span> </div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span><span class="comment"> /// For user interaction</span></div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span><span class="comment"></span> <span class="keywordtype">int</span> n;</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a> &gt;&gt; n;</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="keywordtype">int</span> *arr = <span class="keyword">new</span> <span class="keywordtype">int</span>[n];</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; n; ++i) std::cin &gt;&gt; arr[i];</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <a class="code hl_function" href="../../d9/dfd/comb__sort_8cpp.html#a0f4e7569090083fb53d5cdeaf0e2974f">CombSort</a>(arr, 0, n);</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; n; ++i) <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; arr[i] &lt;&lt; <span class="charliteral">&#39; &#39;</span>;</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> <span class="keyword">delete</span>[] arr;</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span>}</div>
<div class="fragment"><div class="line"><span class="lineno"> 88</span> {<span class="comment"></span></div>
<div class="line"><span class="lineno"> 89</span><span class="comment"> /// Running predefined tests</span></div>
<div class="line"><span class="lineno"> 90</span><span class="comment"></span> <a class="code hl_function" href="../../d9/dfd/comb__sort_8cpp.html#a88ec9ad42717780d6caaff9d3d6977f9">tests</a>();</div>
<div class="line"><span class="lineno"> 91</span><span class="comment"></span> </div>
<div class="line"><span class="lineno"> 92</span><span class="comment"> /// For user interaction</span></div>
<div class="line"><span class="lineno"> 93</span><span class="comment"></span> <span class="keywordtype">int</span> n;</div>
<div class="line"><span class="lineno"> 94</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a> &gt;&gt; n;</div>
<div class="line"><span class="lineno"> 95</span> <span class="keywordtype">int</span> *arr = <span class="keyword">new</span> <span class="keywordtype">int</span>[n];</div>
<div class="line"><span class="lineno"> 96</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; n; ++i) std::cin &gt;&gt; arr[i];</div>
<div class="line"><span class="lineno"> 97</span> <a class="code hl_function" href="../../d9/dfd/comb__sort_8cpp.html#a0f4e7569090083fb53d5cdeaf0e2974f">CombSort</a>(arr, 0, n);</div>
<div class="line"><span class="lineno"> 98</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; n; ++i) <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; arr[i] &lt;&lt; <span class="charliteral">&#39; &#39;</span>;</div>
<div class="line"><span class="lineno"> 99</span> <span class="keyword">delete</span>[] arr;</div>
<div class="line"><span class="lineno"> 100</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><span class="lineno"> 101</span>}</div>
<div class="ttc" id="abasic_istream_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a></div></div>
<div class="ttc" id="abasic_ostream_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a></div></div>
<div class="ttc" id="acomb__sort_8cpp_html_a0f4e7569090083fb53d5cdeaf0e2974f"><div class="ttname"><a href="../../d9/dfd/comb__sort_8cpp.html#a0f4e7569090083fb53d5cdeaf0e2974f">CombSort</a></div><div class="ttdeci">void CombSort(int *arr, int l, int r)</div><div class="ttdef"><b>Definition:</b> comb_sort.cpp:42</div></div>
@@ -312,19 +312,19 @@ Here is the call graph for this function:</div>
</div><div class="memdoc">
<p >Test 1</p>
<p >Test 2</p>
<div class="fragment"><div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> {<span class="comment"></span></div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span><span class="comment"> /// Test 1</span></div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span><span class="comment"></span> <span class="keywordtype">int</span> arr1[10] = {34, 56, 6, 23, 76, 34, 76, 343, 4, 76};</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <a class="code hl_function" href="../../d9/dfd/comb__sort_8cpp.html#a0f4e7569090083fb53d5cdeaf0e2974f">CombSort</a>(arr1, 0, 10);</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> assert(<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/algorithm/is_sorted.html">std::is_sorted</a>(arr1, arr1 + 10));</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;Test 1 passed\n&quot;</span>;</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span><span class="comment"></span> </div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span><span class="comment"> /// Test 2</span></div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span><span class="comment"></span> <span class="keywordtype">int</span> arr2[8] = {-6, 56, -45, 56, 0, -1, 8, 8};</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> <a class="code hl_function" href="../../d9/dfd/comb__sort_8cpp.html#a0f4e7569090083fb53d5cdeaf0e2974f">CombSort</a>(arr2, 0, 8);</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> assert(<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/algorithm/is_sorted.html">std::is_sorted</a>(arr2, arr2 + 8));</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;Test 2 Passed\n&quot;</span>;</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span>}</div>
<div class="fragment"><div class="line"><span class="lineno"> 73</span> {<span class="comment"></span></div>
<div class="line"><span class="lineno"> 74</span><span class="comment"> /// Test 1</span></div>
<div class="line"><span class="lineno"> 75</span><span class="comment"></span> <span class="keywordtype">int</span> arr1[10] = {34, 56, 6, 23, 76, 34, 76, 343, 4, 76};</div>
<div class="line"><span class="lineno"> 76</span> <a class="code hl_function" href="../../d9/dfd/comb__sort_8cpp.html#a0f4e7569090083fb53d5cdeaf0e2974f">CombSort</a>(arr1, 0, 10);</div>
<div class="line"><span class="lineno"> 77</span> assert(<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/algorithm/is_sorted.html">std::is_sorted</a>(arr1, arr1 + 10));</div>
<div class="line"><span class="lineno"> 78</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;Test 1 passed\n&quot;</span>;</div>
<div class="line"><span class="lineno"> 79</span><span class="comment"></span> </div>
<div class="line"><span class="lineno"> 80</span><span class="comment"> /// Test 2</span></div>
<div class="line"><span class="lineno"> 81</span><span class="comment"></span> <span class="keywordtype">int</span> arr2[8] = {-6, 56, -45, 56, 0, -1, 8, 8};</div>
<div class="line"><span class="lineno"> 82</span> <a class="code hl_function" href="../../d9/dfd/comb__sort_8cpp.html#a0f4e7569090083fb53d5cdeaf0e2974f">CombSort</a>(arr2, 0, 8);</div>
<div class="line"><span class="lineno"> 83</span> assert(<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/algorithm/is_sorted.html">std::is_sorted</a>(arr2, arr2 + 8));</div>
<div class="line"><span class="lineno"> 84</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;Test 2 Passed\n&quot;</span>;</div>
<div class="line"><span class="lineno"> 85</span>}</div>
<div class="ttc" id="ais_sorted_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/algorithm/is_sorted.html">std::is_sorted</a></div><div class="ttdeci">T is_sorted(T... args)</div></div>
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