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@@ -120,7 +137,9 @@ Include dependency graph for n_queens_all_solution_optimised.cpp:</div>
<div class="dyncontent">
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<p><a href="../../da/dac/n__queens__all__solution__optimised_8cpp_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="namespaces" name="namespaces"></a>
Namespaces</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">namespace &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../db/dc0/namespacebacktracking.html">backtracking</a></td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:a04090463be4942a69ea91fe7386da905" id="r_a04090463be4942a69ea91fe7386da905"><td class="memTemplParams" colspan="2">template&lt;size_t n&gt; </td></tr>
<tr class="memitem:a04090463be4942a69ea91fe7386da905"><td class="memTemplItemLeft" align="right" valign="top">void&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="#a04090463be4942a69ea91fe7386da905">backtracking::n_queens_optimized::PrintSol</a> (const <a class="elRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/array.html">std::array</a>&lt; <a class="elRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/array.html">std::array</a>&lt; int, n &gt;, n &gt; &amp;board)</td></tr>
<tr class="memitem:a04090463be4942a69ea91fe7386da905"><td class="memTemplItemLeft" align="right" valign="top">void&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="#a04090463be4942a69ea91fe7386da905">backtracking::n_queens_optimized::PrintSol</a> (const std::array&lt; std::array&lt; int, n &gt;, n &gt; &amp;board)</td></tr>
<tr class="separator:a04090463be4942a69ea91fe7386da905"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a9e48455584a4faa33e83dd1891efd9b9" id="r_a9e48455584a4faa33e83dd1891efd9b9"><td class="memTemplParams" colspan="2">template&lt;size_t n&gt; </td></tr>
<tr class="memitem:a9e48455584a4faa33e83dd1891efd9b9"><td class="memTemplItemLeft" align="right" valign="top">bool&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="#a9e48455584a4faa33e83dd1891efd9b9">backtracking::n_queens_optimized::CanIMove</a> (const <a class="elRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/array.html">std::array</a>&lt; <a class="elRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/array.html">std::array</a>&lt; int, n &gt;, n &gt; &amp;board, int row, int col)</td></tr>
<tr class="memitem:a9e48455584a4faa33e83dd1891efd9b9"><td class="memTemplItemLeft" align="right" valign="top">bool&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="#a9e48455584a4faa33e83dd1891efd9b9">backtracking::n_queens_optimized::CanIMove</a> (const std::array&lt; std::array&lt; int, n &gt;, n &gt; &amp;board, int row, int col)</td></tr>
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<tr class="memitem:a23c0547e4fd1708e6fb643b08327a60f"><td class="memTemplItemLeft" align="right" valign="top">void&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="#a23c0547e4fd1708e6fb643b08327a60f">backtracking::n_queens_optimized::NQueenSol</a> (<a class="elRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/array.html">std::array</a>&lt; <a class="elRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/array.html">std::array</a>&lt; int, n &gt;, n &gt; board, int col)</td></tr>
<tr class="memitem:a23c0547e4fd1708e6fb643b08327a60f"><td class="memTemplItemLeft" align="right" valign="top">void&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="#a23c0547e4fd1708e6fb643b08327a60f">backtracking::n_queens_optimized::NQueenSol</a> (std::array&lt; std::array&lt; int, n &gt;, n &gt; board, int col)</td></tr>
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<tr class="memdesc:ae66f6b31b5ad750f1fe042a706a4e3d4"><td class="mdescLeft">&#160;</td><td class="mdescRight">Main function. <br /></td></tr>
@@ -150,6 +169,8 @@ Functions</h2></td></tr>
<dl class="section author"><dt>Author</dt><dd><a href="https://github.com/deadshotsb" target="_blank">Sombit Bose</a> </dd>
<dd>
<a href="https://github.com/Panquesito7" target="_blank">David Leal</a> </dd></dl>
<p class="definition">Definition in file <a class="el" href="../../da/dac/n__queens__all__solution__optimised_8cpp_source.html">n_queens_all_solution_optimised.cpp</a>.</p>
</div><h2 class="groupheader">Function Documentation</h2>
<a id="a9e48455584a4faa33e83dd1891efd9b9" name="a9e48455584a4faa33e83dd1891efd9b9"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a9e48455584a4faa33e83dd1891efd9b9">&#9670;&#160;</a></span>CanIMove()</h2>
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<tr>
<td class="memname">bool backtracking::n_queens_optimized::CanIMove </td>
<td>(</td>
<td class="paramtype">const <a class="elRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/array.html">std::array</a>&lt; <a class="elRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/array.html">std::array</a>&lt; int, n &gt;, n &gt; &amp;</td> <td class="paramname"><span class="paramname"><em>board</em></span>, </td>
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<tr>
<td class="paramkey"></td>
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<p>check in the row</p>
<p>check the first diagonal</p>
<p>check the second diagonal</p>
<div class="fragment"><div class="line"><span class="lineno"> 60</span> {<span class="comment"></span></div>
<div class="line"><span class="lineno"> 61</span><span class="comment"> /// check in the row</span></div>
<div class="line"><span class="lineno"> 62</span><span class="comment"></span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt;= col; i++) {</div>
<p class="definition">Definition at line <a class="el" href="../../da/dac/n__queens__all__solution__optimised_8cpp_source.html#l00059">59</a> of file <a class="el" href="../../da/dac/n__queens__all__solution__optimised_8cpp_source.html">n_queens_all_solution_optimised.cpp</a>.</p>
<div class="fragment"><div class="line"><span class="lineno"> 60</span> {</div>
<div class="line"><span class="lineno"> 62</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt;= col; i++) {</div>
<div class="line"><span class="lineno"> 63</span> <span class="keywordflow">if</span> (board[row][i] == 1) {</div>
<div class="line"><span class="lineno"> 64</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><span class="lineno"> 65</span> }</div>
<div class="line"><span class="lineno"> 66</span> }<span class="comment"></span></div>
<div class="line"><span class="lineno"> 67</span><span class="comment"> /// check the first diagonal</span></div>
<div class="line"><span class="lineno"> 68</span><span class="comment"></span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = row, j = col; i &gt;= 0 &amp;&amp; j &gt;= 0; i--, j--) {</div>
<div class="line"><span class="lineno"> 66</span> }</div>
<div class="line"><span class="lineno"> 68</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = row, j = col; i &gt;= 0 &amp;&amp; j &gt;= 0; i--, j--) {</div>
<div class="line"><span class="lineno"> 69</span> <span class="keywordflow">if</span> (board[i][j] == 1) {</div>
<div class="line"><span class="lineno"> 70</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><span class="lineno"> 71</span> }</div>
<div class="line"><span class="lineno"> 72</span> }<span class="comment"></span></div>
<div class="line"><span class="lineno"> 73</span><span class="comment"> /// check the second diagonal</span></div>
<div class="line"><span class="lineno"> 74</span><span class="comment"></span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = row, j = col; i &lt;= n - 1 &amp;&amp; j &gt;= 0; i++, j--) {</div>
<div class="line"><span class="lineno"> 72</span> }</div>
<div class="line"><span class="lineno"> 74</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = row, j = col; i &lt;= n - 1 &amp;&amp; j &gt;= 0; i++, j--) {</div>
<div class="line"><span class="lineno"> 75</span> <span class="keywordflow">if</span> (board[i][j] == 1) {</div>
<div class="line"><span class="lineno"> 76</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><span class="lineno"> 77</span> }</div>
<div class="line"><span class="lineno"> 78</span> }</div>
<div class="line"><span class="lineno"> 79</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><span class="lineno"> 80</span>}</div>
</div><!-- fragment --><div class="dynheader">
Here is the call graph for this function:</div>
<div class="dyncontent">
<div class="center"><iframe scrolling="no" frameborder="0" src="../../da/dac/n__queens__all__solution__optimised_8cpp_a9e48455584a4faa33e83dd1891efd9b9_cgraph.svg" width="171" height="76"><p><b>This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.</b></p></iframe></div>
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<a id="ae66f6b31b5ad750f1fe042a706a4e3d4" name="ae66f6b31b5ad750f1fe042a706a4e3d4"></a>
@@ -242,9 +257,11 @@ Here is the call graph for this function:</div>
<p>Main function. </p>
<dl class="section return"><dt>Returns</dt><dd>0 on exit </dd></dl>
<p class="definition">Definition at line <a class="el" href="../../da/dac/n__queens__all__solution__optimised_8cpp_source.html#l00109">109</a> of file <a class="el" href="../../da/dac/n__queens__all__solution__optimised_8cpp_source.html">n_queens_all_solution_optimised.cpp</a>.</p>
<div class="fragment"><div class="line"><span class="lineno"> 109</span> {</div>
<div class="line"><span class="lineno"> 110</span> <span class="keyword">const</span> <span class="keywordtype">int</span> n = 4;</div>
<div class="line"><span class="lineno"> 111</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/array.html">std::array&lt;std::array&lt;int, n&gt;</a>, n&gt; board{};</div>
<div class="line"><span class="lineno"> 111</span> std::array&lt;std::array&lt;int, n&gt;, n&gt; board{};</div>
<div class="line"><span class="lineno"> 112</span> </div>
<div class="line"><span class="lineno"> 113</span> <span class="keywordflow">if</span> (n % 2 == 0) {</div>
<div class="line"><span class="lineno"> 114</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt;= n / 2 - 1; i++) {</div>
@@ -265,8 +282,7 @@ Here is the call graph for this function:</div>
<div class="line"><span class="lineno"> 129</span> }</div>
<div class="line"><span class="lineno"> 130</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><span class="lineno"> 131</span>}</div>
<div class="ttc" id="aarray_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/array.html">std::array</a></div></div>
<div class="ttc" id="an__queens__all__solution__optimised_8cpp_html_a23c0547e4fd1708e6fb643b08327a60f"><div class="ttname"><a href="#a23c0547e4fd1708e6fb643b08327a60f">backtracking::n_queens_optimized::NQueenSol</a></div><div class="ttdeci">void NQueenSol(std::array&lt; std::array&lt; int, n &gt;, n &gt; board, int col)</div><div class="ttdef"><b>Definition</b> n_queens_all_solution_optimised.cpp:89</div></div>
<div class="ttc" id="an__queens__all__solution__optimised_8cpp_html_a23c0547e4fd1708e6fb643b08327a60f"><div class="ttname"><a href="#a23c0547e4fd1708e6fb643b08327a60f">backtracking::n_queens_optimized::NQueenSol</a></div><div class="ttdeci">void NQueenSol(std::array&lt; std::array&lt; int, n &gt;, n &gt; board, int col)</div><div class="ttdef"><b>Definition</b> <a href="../../da/dac/n__queens__all__solution__optimised_8cpp_source.html#l00089">n_queens_all_solution_optimised.cpp:89</a></div></div>
</div><!-- fragment -->
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@@ -281,7 +297,7 @@ template&lt;size_t n&gt; </div>
<tr>
<td class="memname">void backtracking::n_queens_optimized::NQueenSol </td>
<td>(</td>
<td class="paramtype"><a class="elRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/array.html">std::array</a>&lt; <a class="elRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/array.html">std::array</a>&lt; int, n &gt;, n &gt;</td> <td class="paramname"><span class="paramname"><em>board</em></span>, </td>
<td class="paramtype">std::array&lt; std::array&lt; int, n &gt;, n &gt;</td> <td class="paramname"><span class="paramname"><em>board</em></span>, </td>
</tr>
<tr>
<td class="paramkey"></td>
@@ -303,6 +319,8 @@ template&lt;size_t n&gt; </div>
</table>
</dd>
</dl>
<p class="definition">Definition at line <a class="el" href="../../da/dac/n__queens__all__solution__optimised_8cpp_source.html#l00089">89</a> of file <a class="el" href="../../da/dac/n__queens__all__solution__optimised_8cpp_source.html">n_queens_all_solution_optimised.cpp</a>.</p>
<div class="fragment"><div class="line"><span class="lineno"> 89</span> {</div>
<div class="line"><span class="lineno"> 90</span> <span class="keywordflow">if</span> (col &gt;= n) {</div>
<div class="line"><span class="lineno"> 91</span> PrintSol&lt;n&gt;(board);</div>
@@ -316,12 +334,7 @@ template&lt;size_t n&gt; </div>
<div class="line"><span class="lineno"> 99</span> }</div>
<div class="line"><span class="lineno"> 100</span> }</div>
<div class="line"><span class="lineno"> 101</span>}</div>
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<a id="a04090463be4942a69ea91fe7386da905" name="a04090463be4942a69ea91fe7386da905"></a>
@@ -335,7 +348,7 @@ template&lt;size_t n&gt; </div>
<tr>
<td class="memname">void backtracking::n_queens_optimized::PrintSol </td>
<td>(</td>
<td class="paramtype">const <a class="elRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/array.html">std::array</a>&lt; <a class="elRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/array.html">std::array</a>&lt; int, n &gt;, n &gt; &amp;</td> <td class="paramname"><span class="paramname"><em>board</em></span></td><td>)</td>
<td class="paramtype">const std::array&lt; std::array&lt; int, n &gt;, n &gt; &amp;</td> <td class="paramname"><span class="paramname"><em>board</em></span></td><td>)</td>
<td></td>
</tr>
</table>
@@ -352,32 +365,27 @@ template&lt;size_t n&gt; </div>
</table>
</dd>
</dl>
<p class="definition">Definition at line <a class="el" href="../../da/dac/n__queens__all__solution__optimised_8cpp_source.html#l00030">30</a> of file <a class="el" href="../../da/dac/n__queens__all__solution__optimised_8cpp_source.html">n_queens_all_solution_optimised.cpp</a>.</p>
<div class="fragment"><div class="line"><span class="lineno"> 30</span> {</div>
<div class="line"><span class="lineno"> 31</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; n; i++) {</div>
<div class="line"><span class="lineno"> 32</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j &lt; n; j++) {</div>
<div class="line"><span class="lineno"> 33</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; board[i][j] &lt;&lt; <span class="stringliteral">&quot; &quot;</span>;</div>
<div class="line"><span class="lineno"> 33</span> std::cout &lt;&lt; board[i][j] &lt;&lt; <span class="stringliteral">&quot; &quot;</span>;</div>
<div class="line"><span class="lineno"> 34</span> }</div>
<div class="line"><span class="lineno"> 35</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
<div class="line"><span class="lineno"> 35</span> std::cout &lt;&lt; std::endl;</div>
<div class="line"><span class="lineno"> 36</span> }</div>
<div class="line"><span class="lineno"> 37</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
<div class="line"><span class="lineno"> 37</span> std::cout &lt;&lt; std::endl;</div>
<div class="line"><span class="lineno"> 38</span> <span class="keywordflow">if</span> (n % 2 == 0 || (n % 2 == 1 &amp;&amp; board[n / 2 + 1][0] != 1)) {</div>
<div class="line"><span class="lineno"> 39</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; n; i++) {</div>
<div class="line"><span class="lineno"> 40</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j &lt; n; j++) {</div>
<div class="line"><span class="lineno"> 41</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; board[j][i] &lt;&lt; <span class="stringliteral">&quot; &quot;</span>;</div>
<div class="line"><span class="lineno"> 41</span> std::cout &lt;&lt; board[j][i] &lt;&lt; <span class="stringliteral">&quot; &quot;</span>;</div>
<div class="line"><span class="lineno"> 42</span> }</div>
<div class="line"><span class="lineno"> 43</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
<div class="line"><span class="lineno"> 43</span> std::cout &lt;&lt; std::endl;</div>
<div class="line"><span class="lineno"> 44</span> }</div>
<div class="line"><span class="lineno"> 45</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
<div class="line"><span class="lineno"> 45</span> std::cout &lt;&lt; std::endl;</div>
<div class="line"><span class="lineno"> 46</span> }</div>
<div class="line"><span class="lineno"> 47</span>}</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="aendl_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a></div><div class="ttdeci">T endl(T... args)</div></div>
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<div class="header">
<div class="headertitle"><div class="title">n_queens_all_solution_optimised.cpp</div></div>
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<div class="contents">
<a href="../../da/dac/n__queens__all__solution__optimised_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="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="preprocessor">#include &lt;array&gt;</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#include &lt;iostream&gt;</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span> </div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="keyword">namespace </span><a class="code hl_namespace" href="../../db/dc0/namespacebacktracking.html">backtracking</a> {</div>
<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="../../d8/d14/namespacen__queens__optimized.html">n_queens_optimized</a> {</div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="keyword">template</span> &lt;<span class="keywordtype">size_t</span> n&gt;</div>
<div class="foldopen" id="foldopen00030" data-start="{" data-end="}">
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"><a class="line" href="../../da/dac/n__queens__all__solution__optimised_8cpp.html#a04090463be4942a69ea91fe7386da905"> 30</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="../../da/dac/n__queens__all__solution__optimised_8cpp.html#a04090463be4942a69ea91fe7386da905">PrintSol</a>(<span class="keyword">const</span> std::array&lt;std::array&lt;int, n&gt;, n&gt; &amp;board) {</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; n; i++) {</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j &lt; n; j++) {</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> std::cout &lt;&lt; board[i][j] &lt;&lt; <span class="stringliteral">&quot; &quot;</span>;</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> }</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> std::cout &lt;&lt; std::endl;</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> }</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> std::cout &lt;&lt; std::endl;</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> <span class="keywordflow">if</span> (n % 2 == 0 || (n % 2 == 1 &amp;&amp; board[n / 2 + 1][0] != 1)) {</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; n; i++) {</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j &lt; n; j++) {</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> std::cout &lt;&lt; board[j][i] &lt;&lt; <span class="stringliteral">&quot; &quot;</span>;</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> }</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> std::cout &lt;&lt; std::endl;</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> }</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> std::cout &lt;&lt; std::endl;</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> }</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span>}</div>
</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> </div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span><span class="keyword">template</span> &lt;<span class="keywordtype">size_t</span> n&gt;</div>
<div class="foldopen" id="foldopen00059" data-start="{" data-end="}">
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"><a class="line" href="../../da/dac/n__queens__all__solution__optimised_8cpp.html#a9e48455584a4faa33e83dd1891efd9b9"> 59</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="../../da/dac/n__queens__all__solution__optimised_8cpp.html#a9e48455584a4faa33e83dd1891efd9b9">CanIMove</a>(<span class="keyword">const</span> std::array&lt;std::array&lt;int, n&gt;, n&gt; &amp;board, <span class="keywordtype">int</span> row,</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="keywordtype">int</span> col) {</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt;= col; i++) {</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> <span class="keywordflow">if</span> (board[row][i] == 1) {</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> }</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> }</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = row, j = col; i &gt;= 0 &amp;&amp; j &gt;= 0; i--, j--) {</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> <span class="keywordflow">if</span> (board[i][j] == 1) {</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> }</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> }</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = row, j = col; i &lt;= n - 1 &amp;&amp; j &gt;= 0; i++, j--) {</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <span class="keywordflow">if</span> (board[i][j] == 1) {</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> }</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> }</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span>}</div>
</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> </div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span><span class="keyword">template</span> &lt;<span class="keywordtype">size_t</span> n&gt;</div>
<div class="foldopen" id="foldopen00089" data-start="{" data-end="}">
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"><a class="line" href="../../da/dac/n__queens__all__solution__optimised_8cpp.html#a23c0547e4fd1708e6fb643b08327a60f"> 89</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="../../da/dac/n__queens__all__solution__optimised_8cpp.html#a23c0547e4fd1708e6fb643b08327a60f">NQueenSol</a>(std::array&lt;std::array&lt;int, n&gt;, n&gt; board, <span class="keywordtype">int</span> col) {</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <span class="keywordflow">if</span> (col &gt;= n) {</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> PrintSol&lt;n&gt;(board);</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> }</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; n; i++) {</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="keywordflow">if</span> (CanIMove&lt;n&gt;(board, i, col)) {</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> board[i][col] = 1;</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> NQueenSol&lt;n&gt;(board, col + 1);</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> board[i][col] = 0;</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> }</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> }</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span>}</div>
</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span>} <span class="comment">// namespace n_queens_optimized</span></div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span>} <span class="comment">// namespace backtracking</span></div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> </div>
<div class="foldopen" id="foldopen00109" data-start="{" data-end="}">
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"><a class="line" href="../../da/dac/n__queens__all__solution__optimised_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4"> 109</a></span><span class="keywordtype">int</span> <a class="code hl_function" href="../../da/dac/n__queens__all__solution__optimised_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a>() {</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <span class="keyword">const</span> <span class="keywordtype">int</span> n = 4;</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> std::array&lt;std::array&lt;int, n&gt;, n&gt; board{};</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> </div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> <span class="keywordflow">if</span> (n % 2 == 0) {</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt;= n / 2 - 1; i++) {</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> <span class="keywordflow">if</span> (backtracking::n_queens_optimized::CanIMove(board, i, 0)) {</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> board[i][0] = 1;</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> backtracking::n_queens_optimized::NQueenSol(board, 1);</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> board[i][0] = 0;</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> }</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> }</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt;= n / 2; i++) {</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <span class="keywordflow">if</span> (backtracking::n_queens_optimized::CanIMove(board, i, 0)) {</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> board[i][0] = 1;</div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> backtracking::n_queens_optimized::NQueenSol(board, 1);</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> board[i][0] = 0;</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> }</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> }</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> }</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span>}</div>
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<div class="ttc" id="an__queens__all__solution__optimised_8cpp_html_a04090463be4942a69ea91fe7386da905"><div class="ttname"><a href="../../da/dac/n__queens__all__solution__optimised_8cpp.html#a04090463be4942a69ea91fe7386da905">backtracking::n_queens_optimized::PrintSol</a></div><div class="ttdeci">void PrintSol(const std::array&lt; std::array&lt; int, n &gt;, n &gt; &amp;board)</div><div class="ttdef"><b>Definition</b> <a href="#l00030">n_queens_all_solution_optimised.cpp:30</a></div></div>
<div class="ttc" id="an__queens__all__solution__optimised_8cpp_html_a23c0547e4fd1708e6fb643b08327a60f"><div class="ttname"><a href="../../da/dac/n__queens__all__solution__optimised_8cpp.html#a23c0547e4fd1708e6fb643b08327a60f">backtracking::n_queens_optimized::NQueenSol</a></div><div class="ttdeci">void NQueenSol(std::array&lt; std::array&lt; int, n &gt;, n &gt; board, int col)</div><div class="ttdef"><b>Definition</b> <a href="#l00089">n_queens_all_solution_optimised.cpp:89</a></div></div>
<div class="ttc" id="an__queens__all__solution__optimised_8cpp_html_a9e48455584a4faa33e83dd1891efd9b9"><div class="ttname"><a href="../../da/dac/n__queens__all__solution__optimised_8cpp.html#a9e48455584a4faa33e83dd1891efd9b9">backtracking::n_queens_optimized::CanIMove</a></div><div class="ttdeci">bool CanIMove(const std::array&lt; std::array&lt; int, n &gt;, n &gt; &amp;board, int row, int col)</div><div class="ttdef"><b>Definition</b> <a href="#l00059">n_queens_all_solution_optimised.cpp:59</a></div></div>
<div class="ttc" id="an__queens__all__solution__optimised_8cpp_html_ae66f6b31b5ad750f1fe042a706a4e3d4"><div class="ttname"><a href="../../da/dac/n__queens__all__solution__optimised_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="#l00109">n_queens_all_solution_optimised.cpp:109</a></div></div>
<div class="ttc" id="anamespacebacktracking_html"><div class="ttname"><a href="../../db/dc0/namespacebacktracking.html">backtracking</a></div><div class="ttdoc">for vector container</div></div>
<div class="ttc" id="anamespacen__queens__optimized_html"><div class="ttname"><a href="../../d8/d14/namespacen__queens__optimized.html">n_queens_optimized</a></div><div class="ttdoc">Functions for Eight Queens puzzle optimized.</div></div>
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