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<div class="headertitle"><div class="title">depth_first_search_with_stack.cpp</div></div>
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<div class="contents">
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<a href="../../da/d4b/depth__first__search__with__stack_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="l00031" name="l00031"></a><span class="lineno"> 31</span> </div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="preprocessor">#include <iostream></span> </div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="preprocessor">#include <stack></span> </div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="preprocessor">#include <vector></span> </div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="preprocessor">#include <cassert></span> </div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span><span class="preprocessor">#include <limits></span> </div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> </div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"><a class="line" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#afb80b42b42381658a12a57a975ecd0c7"> 38</a></span><span class="keyword">constexpr</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#afb80b42b42381658a12a57a975ecd0c7">WHITE</a> = 0; </div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"><a class="line" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#a43e30173f12330e85cce6239a277527e"> 39</a></span><span class="keyword">constexpr</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#a43e30173f12330e85cce6239a277527e">GREY</a> = 1; </div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"><a class="line" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#a7f1cd94cf4da32933e8551cb3577e18b"> 40</a></span><span class="keyword">constexpr</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#a7f1cd94cf4da32933e8551cb3577e18b">BLACK</a> = 2; </div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"><a class="line" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#a330a2b0a904f01802ada1f8f3b28e76c"> 41</a></span><span class="keyword">constexpr</span> int64_t <a class="code hl_variable" href="../../d7/d07/bidirectional__dijkstra_8cpp.html#a330a2b0a904f01802ada1f8f3b28e76c">INF</a> = std::numeric_limits<int16_t>::max();</div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> </div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span></div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span><span class="keyword">namespace </span><a class="code hl_namespace" href="../../df/dce/namespacegraph.html">graph</a> {</div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span><span class="keyword">namespace </span><a class="code hl_namespace" href="../../d8/da7/namespacedepth__first__search.html">depth_first_search</a> {</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="../../da/d4b/depth__first__search__with__stack_8cpp.html#aadebe9c855821d6515ca5b171222ef7b"> 64</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#aadebe9c855821d6515ca5b171222ef7b">addEdge</a>(std::vector<std::vector<size_t>> *adj, <span class="keywordtype">size_t</span> u, <span class="keywordtype">size_t</span> v) {</div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="comment">/*</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"> * Here we are considering undirected graph that's the</span></div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span><span class="comment"> * reason we are adding v to the adjacency list representation of u</span></div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span><span class="comment"> * and also adding u to the adjacency list representation of v</span></div>
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<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span><span class="comment"> *</span></div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span><span class="comment"> */</span></div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> (*adj)[u - 1].push_back(v - 1);</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>
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<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span></div>
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<div class="foldopen" id="foldopen00087" data-start="{" data-end="}">
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<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"><a class="line" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#a5738da9f508f6a9e87f123c9fb6f2ea9"> 87</a></span>std::vector<size_t> <a class="code hl_function" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#a5738da9f508f6a9e87f123c9fb6f2ea9">dfs</a>(<span class="keyword">const</span> std::vector<std::vector<size_t> > &<a class="code hl_namespace" href="../../df/dce/namespacegraph.html">graph</a>, <span class="keywordtype">size_t</span> start) {</div>
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<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> std::vector<size_t> checked(<a class="code hl_namespace" href="../../df/dce/namespacegraph.html">graph</a>.size(), <a class="code hl_variable" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#afb80b42b42381658a12a57a975ecd0c7">WHITE</a>), traversed_path;</div>
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<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> </div>
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<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> checked[start] = <a class="code hl_variable" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#a43e30173f12330e85cce6239a277527e">GREY</a>;</div>
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<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> std::stack<size_t> <a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>;</div>
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<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> <a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>.<a class="code hl_function" href="../../d1/dc2/classstack.html#a90df277532c23519aa7ac3c08ed90a1d">push</a>(start);</div>
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<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span></div>
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<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> <span class="keywordflow">while</span> (!<a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>.empty()) {</div>
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<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <span class="keywordtype">int</span> act = <a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>.<a class="code hl_function" href="../../d1/dc2/classstack.html#ae09630c4384903d187801921b2ddc709">top</a>();</div>
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<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>.<a class="code hl_function" href="../../d1/dc2/classstack.html#a3647fb4418890f19e0dc414b8092b8b0">pop</a>();</div>
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<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> </div>
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<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> <span class="keywordflow">if</span> (checked[act] == <a class="code hl_variable" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#a43e30173f12330e85cce6239a277527e">GREY</a>) {</div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> traversed_path.push_back(act + 1);</div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span></div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> <span class="keywordflow">for</span> (<span class="keyword">auto</span> it : <a class="code hl_namespace" href="../../df/dce/namespacegraph.html">graph</a>[act]) {</div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <a class="code hl_class" href="../../d1/dc2/classstack.html">stack</a>.<a class="code hl_function" href="../../d1/dc2/classstack.html#a90df277532c23519aa7ac3c08ed90a1d">push</a>(it);</div>
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<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <span class="keywordflow">if</span> (checked[it] != <a class="code hl_variable" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#a7f1cd94cf4da32933e8551cb3577e18b">BLACK</a>) {</div>
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<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> checked[it] = <a class="code hl_variable" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#a43e30173f12330e85cce6239a277527e">GREY</a>;</div>
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<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> }</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> checked[act] = <a class="code hl_variable" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#a7f1cd94cf4da32933e8551cb3577e18b">BLACK</a>; </div>
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<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> }</div>
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<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> }</div>
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<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> <span class="keywordflow">return</span> traversed_path;</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>
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<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span>} <span class="comment">// namespace depth_first_search</span></div>
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<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span>} <span class="comment">// namespace graph</span></div>
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<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span></div>
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<div class="foldopen" id="foldopen00123" data-start="{" data-end="}">
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<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"><a class="line" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#a483bb8ccf42aaf7375a83e91490eda1e"> 123</a></span><span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code hl_function" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#a483bb8ccf42aaf7375a83e91490eda1e">tests</a>() {</div>
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<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> <span class="keywordtype">size_t</span> start_pos;</div>
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<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span></div>
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<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> std::cout << <span class="stringliteral">"Case 1: "</span> << std::endl;</div>
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<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> start_pos = 1;</div>
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<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> std::vector<std::vector<size_t> > g1(3, std::vector<size_t>());</div>
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<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> </div>
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<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <a class="code hl_function" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#aadebe9c855821d6515ca5b171222ef7b">graph::depth_first_search::addEdge</a>(&g1, 1, 2);</div>
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<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <a class="code hl_function" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#aadebe9c855821d6515ca5b171222ef7b">graph::depth_first_search::addEdge</a>(&g1, 2, 3);</div>
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<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> <a class="code hl_function" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#aadebe9c855821d6515ca5b171222ef7b">graph::depth_first_search::addEdge</a>(&g1, 3, 1);</div>
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<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> </div>
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<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> std::vector<size_t> expected1 {1, 2, 3}; </div>
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<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> assert(<a class="code hl_function" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#a5738da9f508f6a9e87f123c9fb6f2ea9">graph::depth_first_search::dfs</a>(g1, start_pos - 1) == expected1);</div>
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<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> std::cout << <span class="stringliteral">"Passed"</span> << std::endl;</div>
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<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span></div>
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<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> std::cout << <span class="stringliteral">"Case 2: "</span> << std::endl;</div>
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<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> start_pos = 1;</div>
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<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> std::vector<std::vector<size_t> > g2(4, std::vector<size_t>());</div>
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<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> </div>
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<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> <a class="code hl_function" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#aadebe9c855821d6515ca5b171222ef7b">graph::depth_first_search::addEdge</a>(&g2, 1, 2);</div>
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<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> <a class="code hl_function" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#aadebe9c855821d6515ca5b171222ef7b">graph::depth_first_search::addEdge</a>(&g2, 1, 3);</div>
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<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> <a class="code hl_function" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#aadebe9c855821d6515ca5b171222ef7b">graph::depth_first_search::addEdge</a>(&g2, 2, 4);</div>
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<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> <a class="code hl_function" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#aadebe9c855821d6515ca5b171222ef7b">graph::depth_first_search::addEdge</a>(&g2, 4, 1);</div>
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<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> </div>
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<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> std::vector<size_t> expected2 {1, 3, 2, 4}; </div>
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<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> assert(<a class="code hl_function" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#a5738da9f508f6a9e87f123c9fb6f2ea9">graph::depth_first_search::dfs</a>(g2, start_pos - 1) == expected2);</div>
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<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> std::cout << <span class="stringliteral">"Passed"</span> << std::endl;</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="l00154" name="l00154"></a><span class="lineno"> 154</span> std::cout << <span class="stringliteral">"Case 3: "</span> << std::endl;</div>
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<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> start_pos = 2;</div>
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<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> std::vector<std::vector<size_t> > g3(4, std::vector<size_t>());</div>
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<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> </div>
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<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> <a class="code hl_function" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#aadebe9c855821d6515ca5b171222ef7b">graph::depth_first_search::addEdge</a>(&g3, 1, 2);</div>
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<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> <a class="code hl_function" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#aadebe9c855821d6515ca5b171222ef7b">graph::depth_first_search::addEdge</a>(&g3, 1, 3);</div>
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<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> <a class="code hl_function" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#aadebe9c855821d6515ca5b171222ef7b">graph::depth_first_search::addEdge</a>(&g3, 2, 4);</div>
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<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> <a class="code hl_function" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#aadebe9c855821d6515ca5b171222ef7b">graph::depth_first_search::addEdge</a>(&g3, 4, 1);</div>
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<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> </div>
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<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> std::vector<size_t> expected3 {2, 4, 1, 3}; </div>
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<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> assert(<a class="code hl_function" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#a5738da9f508f6a9e87f123c9fb6f2ea9">graph::depth_first_search::dfs</a>(g3, start_pos - 1) == expected3);</div>
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<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> std::cout << <span class="stringliteral">"Passed"</span> << std::endl;</div>
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<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> </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>
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<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span></div>
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<div class="foldopen" id="foldopen00173" data-start="{" data-end="}">
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<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"><a class="line" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4"> 173</a></span><span class="keywordtype">int</span> <a class="code hl_function" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a>() {</div>
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<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> <a class="code hl_function" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#a483bb8ccf42aaf7375a83e91490eda1e">tests</a>(); <span class="comment">// execute the tests</span></div>
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<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> </div>
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<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> <span class="keywordtype">size_t</span> vertices = 0, edges = 0, start_pos = 1;</div>
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<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> std::vector<size_t> traversal;</div>
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<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> </div>
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<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> std::cout << <span class="stringliteral">"Enter the Vertices : "</span>;</div>
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<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> std::cin >> vertices;</div>
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<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> std::cout << <span class="stringliteral">"Enter the Edges : "</span>;</div>
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<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> std::cin >> edges;</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="l00185" name="l00185"></a><span class="lineno"> 185</span> std::vector<std::vector<size_t> > adj(vertices, std::vector<size_t>());</div>
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<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span></div>
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<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> std::cout << <span class="stringliteral">"Enter the vertices which have edges between them : "</span> << std::endl;</div>
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<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> <span class="keywordflow">while</span> (edges--) {</div>
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<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> <span class="keywordtype">size_t</span> u = 0, v = 0;</div>
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<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> std::cin >> u >> v;</div>
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<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> <a class="code hl_function" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#aadebe9c855821d6515ca5b171222ef7b">graph::depth_first_search::addEdge</a>(&adj, u, v);</div>
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<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> }</div>
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<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span></div>
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<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> std::cout << <span class="stringliteral">"Enter the starting vertex [1,n]: "</span> << std::endl;</div>
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<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> std::cin >> start_pos;</div>
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<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> start_pos -= 1;</div>
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<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> traversal = <a class="code hl_function" href="../../da/d4b/depth__first__search__with__stack_8cpp.html#a5738da9f508f6a9e87f123c9fb6f2ea9">graph::depth_first_search::dfs</a>(adj, start_pos);</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="l00202" name="l00202"></a><span class="lineno"> 202</span> <span class="keywordflow">for</span> (<span class="keyword">auto</span> x : traversal) {</div>
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<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> std::cout << x << <span class="charliteral">' '</span>;</div>
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<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> }</div>
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<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> </div>
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<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> <span class="keywordflow">return</span> 0;</div>
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<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span>}</div>
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</div>
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<div class="ttc" id="abidirectional__dijkstra_8cpp_html_a330a2b0a904f01802ada1f8f3b28e76c"><div class="ttname"><a href="../../d7/d07/bidirectional__dijkstra_8cpp.html#a330a2b0a904f01802ada1f8f3b28e76c">INF</a></div><div class="ttdeci">constexpr int64_t INF</div><div class="ttdoc">for assert</div><div class="ttdef"><b>Definition</b> <a href="../../d7/d07/bidirectional__dijkstra_8cpp_source.html#l00024">bidirectional_dijkstra.cpp:24</a></div></div>
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<div class="ttc" id="aclassstack_html"><div class="ttname"><a href="../../d1/dc2/classstack.html">stack</a></div><div class="ttdoc">for std::invalid_argument</div><div class="ttdef"><b>Definition</b> <a href="../../df/d47/stack_8hpp_source.html#l00019">stack.hpp:19</a></div></div>
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<div class="ttc" id="aclassstack_html_a3647fb4418890f19e0dc414b8092b8b0"><div class="ttname"><a href="../../d1/dc2/classstack.html#a3647fb4418890f19e0dc414b8092b8b0">stack::pop</a></div><div class="ttdeci">void pop()</div><div class="ttdef"><b>Definition</b> <a href="../../df/d47/stack_8hpp_source.html#l00062">stack.hpp:62</a></div></div>
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<div class="ttc" id="aclassstack_html_a90df277532c23519aa7ac3c08ed90a1d"><div class="ttname"><a href="../../d1/dc2/classstack.html#a90df277532c23519aa7ac3c08ed90a1d">stack::push</a></div><div class="ttdeci">void push(const value_type &item)</div><div class="ttdef"><b>Definition</b> <a href="../../df/d47/stack_8hpp_source.html#l00047">stack.hpp:47</a></div></div>
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<div class="ttc" id="aclassstack_html_ae09630c4384903d187801921b2ddc709"><div class="ttname"><a href="../../d1/dc2/classstack.html#ae09630c4384903d187801921b2ddc709">stack::top</a></div><div class="ttdeci">value_type top() const</div><div class="ttdef"><b>Definition</b> <a href="../../df/d47/stack_8hpp_source.html#l00056">stack.hpp:56</a></div></div>
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<div class="ttc" id="adepth__first__search__with__stack_8cpp_html_a43e30173f12330e85cce6239a277527e"><div class="ttname"><a href="../../da/d4b/depth__first__search__with__stack_8cpp.html#a43e30173f12330e85cce6239a277527e">GREY</a></div><div class="ttdeci">constexpr int GREY</div><div class="ttdoc">indicates the node hasn't been explored</div><div class="ttdef"><b>Definition</b> <a href="#l00039">depth_first_search_with_stack.cpp:39</a></div></div>
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<div class="ttc" id="adepth__first__search__with__stack_8cpp_html_a483bb8ccf42aaf7375a83e91490eda1e"><div class="ttname"><a href="../../da/d4b/depth__first__search__with__stack_8cpp.html#a483bb8ccf42aaf7375a83e91490eda1e">tests</a></div><div class="ttdeci">static void tests()</div><div class="ttdef"><b>Definition</b> <a href="#l00123">depth_first_search_with_stack.cpp:123</a></div></div>
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<div class="ttc" id="adepth__first__search__with__stack_8cpp_html_a5738da9f508f6a9e87f123c9fb6f2ea9"><div class="ttname"><a href="../../da/d4b/depth__first__search__with__stack_8cpp.html#a5738da9f508f6a9e87f123c9fb6f2ea9">graph::depth_first_search::dfs</a></div><div class="ttdeci">std::vector< size_t > dfs(const std::vector< std::vector< size_t > > &graph, size_t start)</div><div class="ttdoc">Explores the given vertex, exploring a vertex means traversing over all the vertices which are connec...</div><div class="ttdef"><b>Definition</b> <a href="#l00087">depth_first_search_with_stack.cpp:87</a></div></div>
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<div class="ttc" id="adepth__first__search__with__stack_8cpp_html_a7f1cd94cf4da32933e8551cb3577e18b"><div class="ttname"><a href="../../da/d4b/depth__first__search__with__stack_8cpp.html#a7f1cd94cf4da32933e8551cb3577e18b">BLACK</a></div><div class="ttdeci">constexpr int BLACK</div><div class="ttdoc">indicates node is in stack waiting to be explored</div><div class="ttdef"><b>Definition</b> <a href="#l00040">depth_first_search_with_stack.cpp:40</a></div></div>
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<div class="ttc" id="adepth__first__search__with__stack_8cpp_html_aadebe9c855821d6515ca5b171222ef7b"><div class="ttname"><a href="../../da/d4b/depth__first__search__with__stack_8cpp.html#aadebe9c855821d6515ca5b171222ef7b">graph::depth_first_search::addEdge</a></div><div class="ttdeci">void addEdge(std::vector< std::vector< size_t > > *adj, size_t u, size_t v)</div><div class="ttdoc">Adds and edge between two vertices of graph say u and v in this case.</div><div class="ttdef"><b>Definition</b> <a href="#l00064">depth_first_search_with_stack.cpp:64</a></div></div>
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<div class="ttc" id="adepth__first__search__with__stack_8cpp_html_ae66f6b31b5ad750f1fe042a706a4e3d4"><div class="ttname"><a href="../../da/d4b/depth__first__search__with__stack_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="#l00173">depth_first_search_with_stack.cpp:173</a></div></div>
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<div class="ttc" id="adepth__first__search__with__stack_8cpp_html_afb80b42b42381658a12a57a975ecd0c7"><div class="ttname"><a href="../../da/d4b/depth__first__search__with__stack_8cpp.html#afb80b42b42381658a12a57a975ecd0c7">WHITE</a></div><div class="ttdeci">constexpr int WHITE</div><div class="ttdef"><b>Definition</b> <a href="#l00038">depth_first_search_with_stack.cpp:38</a></div></div>
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<div class="ttc" id="anamespacedepth__first__search_html"><div class="ttname"><a href="../../d8/da7/namespacedepth__first__search.html">depth_first_search</a></div><div class="ttdoc">Functions for Depth First Search algorithm.</div></div>
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<div class="ttc" id="anamespacegraph_html"><div class="ttname"><a href="../../df/dce/namespacegraph.html">graph</a></div><div class="ttdoc">Graph Algorithms.</div></div>
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