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<a href="../../d5/ddb/bogo__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>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#include &lt;iostream&gt;</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#include &lt;algorithm&gt;</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="preprocessor">#include &lt;array&gt;</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#include &lt;cassert&gt;</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#include &lt;random&gt;</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> </div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span></div>
<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="../../d5/d91/namespacesorting.html">sorting</a> {</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keywordtype">size_t</span> N&gt;</div>
<div class="foldopen" id="foldopen00037" data-start="{" data-end="}">
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"><a class="line" href="../../d5/d91/namespacesorting.html#a7bfe11bd4703eacd1dab93f25ec639c5"> 37</a></span>std::array &lt;T, N&gt; <a class="code hl_function" href="../../d5/d91/namespacesorting.html#a7bfe11bd4703eacd1dab93f25ec639c5">shuffle</a> (std::array &lt;T, N&gt; arr) {</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; N; i++) {</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> <span class="comment">// Swaps i&#39;th index with random index (less than array size)</span></div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> std::swap(arr[i], arr[std::rand() % N]);</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> }</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> <span class="keywordflow">return</span> arr;</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span>}</div>
</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span></div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keywordtype">size_t</span> N&gt;</div>
<div class="foldopen" id="foldopen00052" data-start="{" data-end="}">
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"><a class="line" href="../../d5/d91/namespacesorting.html#affc6ee160142cd017f8c4b213437d0fd"> 52</a></span>std::array &lt;T, N&gt; <a class="code hl_function" href="../../d5/d91/namespacesorting.html#affc6ee160142cd017f8c4b213437d0fd">randomized_bogosort</a> (std::array &lt;T, N&gt; arr) {</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <span class="comment">// Untill array is not sorted</span></div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> std::random_device random_device;</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> std::mt19937 generator(random_device());</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> <span class="keywordflow">while</span> (!std::is_sorted(arr.begin(), arr.end())) {</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> std::shuffle(arr.begin(), arr.end(), generator);<span class="comment">// Shuffle the array</span></div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> }</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> <span class="keywordflow">return</span> arr;</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span>}</div>
</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> </div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span>} <span class="comment">// namespace sorting</span></div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span></div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keywordtype">size_t</span> N&gt;</div>
<div class="foldopen" id="foldopen00071" data-start="{" data-end="}">
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"><a class="line" href="../../d5/ddb/bogo__sort_8cpp.html#ae8adaeff66471f9ed84f2e673b38a859"> 71</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="../../d5/ddb/bogo__sort_8cpp.html#ae8adaeff66471f9ed84f2e673b38a859">show_array</a> (<span class="keyword">const</span> std::array &lt;T, N&gt; &amp;arr) {</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> x : arr) {</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> std::cout &lt;&lt; x &lt;&lt; <span class="charliteral">&#39; &#39;</span>;</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> }</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> std::cout &lt;&lt; <span class="charliteral">&#39;\n&#39;</span>;</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span>}</div>
</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span></div>
<div class="foldopen" id="foldopen00081" data-start="{" data-end="}">
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"><a class="line" href="../../d5/ddb/bogo__sort_8cpp.html#ae1a3968e7947464bee7714f6d43b7002"> 81</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="../../d5/ddb/bogo__sort_8cpp.html#ae1a3968e7947464bee7714f6d43b7002">test</a>() {</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> <span class="comment">// Test 1</span></div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> std::array &lt;int, 5&gt; arr1;</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> &amp;x : arr1) {</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> x = std::rand() % 100;</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> }</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> std::cout &lt;&lt; <span class="stringliteral">&quot;Original Array : &quot;</span>;</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> <a class="code hl_function" href="../../d5/ddb/bogo__sort_8cpp.html#ae8adaeff66471f9ed84f2e673b38a859">show_array</a>(arr1);</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> arr1 = <a class="code hl_function" href="../../d5/d91/namespacesorting.html#affc6ee160142cd017f8c4b213437d0fd">sorting::randomized_bogosort</a>(arr1);</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> std::cout &lt;&lt; <span class="stringliteral">&quot;Sorted Array : &quot;</span>;</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <a class="code hl_function" href="../../d5/ddb/bogo__sort_8cpp.html#ae8adaeff66471f9ed84f2e673b38a859">show_array</a>(arr1);</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> assert(std::is_sorted(arr1.begin(), arr1.end()));</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> <span class="comment">// Test 2</span></div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> std::array &lt;int, 5&gt; arr2;</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> &amp;x : arr2) {</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> x = std::rand() % 100;</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> }</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> std::cout &lt;&lt; <span class="stringliteral">&quot;Original Array : &quot;</span>;</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> <a class="code hl_function" href="../../d5/ddb/bogo__sort_8cpp.html#ae8adaeff66471f9ed84f2e673b38a859">show_array</a>(arr2);</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> arr2 = <a class="code hl_function" href="../../d5/d91/namespacesorting.html#affc6ee160142cd017f8c4b213437d0fd">sorting::randomized_bogosort</a>(arr2);</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> std::cout &lt;&lt; <span class="stringliteral">&quot;Sorted Array : &quot;</span>;</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <a class="code hl_function" href="../../d5/ddb/bogo__sort_8cpp.html#ae8adaeff66471f9ed84f2e673b38a859">show_array</a>(arr2);</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> assert(std::is_sorted(arr2.begin(), arr2.end()));</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span>}</div>
</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span></div>
<div class="foldopen" id="foldopen00107" data-start="{" data-end="}">
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"><a class="line" href="../../d5/ddb/bogo__sort_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4"> 107</a></span><span class="keywordtype">int</span> <a class="code hl_function" href="../../d5/ddb/bogo__sort_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a>() {</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> <span class="comment">// Testing</span></div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> <a class="code hl_function" href="../../d5/ddb/bogo__sort_8cpp.html#ae1a3968e7947464bee7714f6d43b7002">test</a>();</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <span class="comment">// Example Usage</span></div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> std::array &lt;int, 5&gt; arr = {3, 7, 10, 4, 1}; <span class="comment">// Defining array which we want to sort</span></div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> std::cout &lt;&lt; <span class="stringliteral">&quot;Original Array : &quot;</span>;</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> <a class="code hl_function" href="../../d5/ddb/bogo__sort_8cpp.html#ae8adaeff66471f9ed84f2e673b38a859">show_array</a>(arr);</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> arr = <a class="code hl_function" href="../../d5/d91/namespacesorting.html#affc6ee160142cd017f8c4b213437d0fd">sorting::randomized_bogosort</a>(arr); <span class="comment">// Callling bogo sort on it</span></div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> std::cout &lt;&lt; <span class="stringliteral">&quot;Sorted Array : &quot;</span>;</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> <a class="code hl_function" href="../../d5/ddb/bogo__sort_8cpp.html#ae8adaeff66471f9ed84f2e673b38a859">show_array</a>(arr); <span class="comment">// Printing sorted array</span></div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span>}</div>
</div>
<div class="ttc" id="abogo__sort_8cpp_html_ae1a3968e7947464bee7714f6d43b7002"><div class="ttname"><a href="../../d5/ddb/bogo__sort_8cpp.html#ae1a3968e7947464bee7714f6d43b7002">test</a></div><div class="ttdeci">void test()</div><div class="ttdef"><b>Definition</b> <a href="#l00081">bogo_sort.cpp:81</a></div></div>
<div class="ttc" id="abogo__sort_8cpp_html_ae66f6b31b5ad750f1fe042a706a4e3d4"><div class="ttname"><a href="../../d5/ddb/bogo__sort_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a></div><div class="ttdeci">int main()</div><div class="ttdef"><b>Definition</b> <a href="#l00107">bogo_sort.cpp:107</a></div></div>
<div class="ttc" id="abogo__sort_8cpp_html_ae8adaeff66471f9ed84f2e673b38a859"><div class="ttname"><a href="../../d5/ddb/bogo__sort_8cpp.html#ae8adaeff66471f9ed84f2e673b38a859">show_array</a></div><div class="ttdeci">void show_array(const std::array&lt; T, N &gt; &amp;arr)</div><div class="ttdef"><b>Definition</b> <a href="#l00071">bogo_sort.cpp:71</a></div></div>
<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>
<div class="ttc" id="anamespacesorting_html_a7bfe11bd4703eacd1dab93f25ec639c5"><div class="ttname"><a href="../../d5/d91/namespacesorting.html#a7bfe11bd4703eacd1dab93f25ec639c5">sorting::shuffle</a></div><div class="ttdeci">std::array&lt; T, N &gt; shuffle(std::array&lt; T, N &gt; arr)</div><div class="ttdef"><b>Definition</b> <a href="#l00037">bogo_sort.cpp:37</a></div></div>
<div class="ttc" id="anamespacesorting_html_affc6ee160142cd017f8c4b213437d0fd"><div class="ttname"><a href="../../d5/d91/namespacesorting.html#affc6ee160142cd017f8c4b213437d0fd">sorting::randomized_bogosort</a></div><div class="ttdeci">std::array&lt; T, N &gt; randomized_bogosort(std::array&lt; T, N &gt; arr)</div><div class="ttdef"><b>Definition</b> <a href="#l00052">bogo_sort.cpp:52</a></div></div>
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