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<p>Linked list implementation using Arrays.
<a href="#details">More...</a></p>
<div class="textblock"><code>#include &lt;iostream&gt;</code><br />
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Include dependency graph for linkedlist_implentation_usingarray.cpp:</div>
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<tr class="memitem:ac2fa82ac5ae366cc3aca53a40bb7cd70" id="r_ac2fa82ac5ae366cc3aca53a40bb7cd70"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#ac2fa82ac5ae366cc3aca53a40bb7cd70">initialise_list</a> ()</td></tr>
<tr class="memitem:a73e11e0871f56342a30da93b6c93e8be" id="r_a73e11e0871f56342a30da93b6c93e8be"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#a73e11e0871f56342a30da93b6c93e8be">getnode</a> ()</td></tr>
<tr class="memitem:a08ba214242a900e7251cec556b592f02" id="r_a08ba214242a900e7251cec556b592f02"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#a08ba214242a900e7251cec556b592f02">freeNode</a> (int nodeToBeDeleted)</td></tr>
<tr class="memitem:afcb07da7984e20b3207934696791f5df" id="r_afcb07da7984e20b3207934696791f5df"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#afcb07da7984e20b3207934696791f5df">insertAtTheBeginning</a> (int <a class="el" href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a>)</td></tr>
<tr class="memitem:a92e0c1bb3b270143881e36b5fea8a60d" id="r_a92e0c1bb3b270143881e36b5fea8a60d"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#a92e0c1bb3b270143881e36b5fea8a60d">insertAtTheEnd</a> (int <a class="el" href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a>)</td></tr>
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<tr class="memitem:ae66f6b31b5ad750f1fe042a706a4e3d4" id="r_ae66f6b31b5ad750f1fe042a706a4e3d4"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a> ()</td></tr>
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Variables</h2></td></tr>
<tr class="memitem:aed19b403f559fc5d5a4bce724f9e263c" id="r_aed19b403f559fc5d5a4bce724f9e263c"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../db/d8b/struct_node.html">Node</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#aed19b403f559fc5d5a4bce724f9e263c">AvailArray</a> [100]</td></tr>
<tr class="memdesc:aed19b403f559fc5d5a4bce724f9e263c"><td class="mdescLeft">&#160;</td><td class="mdescRight">array that will act as nodes of a linked list. <br /></td></tr>
<tr class="memitem:a20358970b1abaf992eb85e071e454653" id="r_a20358970b1abaf992eb85e071e454653"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#a20358970b1abaf992eb85e071e454653">head</a> = -1</td></tr>
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<a name="details" id="details"></a><h2 id="header-details" class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Linked list implementation using Arrays. </p>
<p>The difference between the pointer implementation of linked list and array implementation of linked list:</p><ol type="1">
<li>The NULL is represented by -1;</li>
<li>Limited size. (in the following case it is 100 nodes at max). But we can reuse the nodes that are to be deleted by again linking it bacj to the list. </li>
</ol>
<p class="definition">Definition in file <a class="el" href="../../d3/dce/linkedlist__implentation__usingarray_8cpp_source.html">linkedlist_implentation_usingarray.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a1e5b20fed15743656bb6d2e6a6ea6269">&#9670;&#160;</a></span>display()</h2>
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<td class="memname">void display </td>
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<p class="definition">Definition at line <a class="el" href="../../d3/dce/linkedlist__implentation__usingarray_8cpp_source.html#l00069">69</a> of file <a class="el" href="../../d3/dce/linkedlist__implentation__usingarray_8cpp_source.html">linkedlist_implentation_usingarray.cpp</a>.</p>
<div class="fragment"><div class="line"><span class="lineno"> 69</span> {</div>
<div class="line"><span class="lineno"> 70</span> <span class="keywordtype">int</span> temp = head;</div>
<div class="line"><span class="lineno"> 71</span> <span class="keywordflow">while</span> (temp != -1) {</div>
<div class="line"><span class="lineno"> 72</span> std::cout &lt;&lt; <a class="code hl_variable" href="#aed19b403f559fc5d5a4bce724f9e263c">AvailArray</a>[temp].data &lt;&lt; <span class="stringliteral">&quot;-&gt;&quot;</span>;</div>
<div class="line"><span class="lineno"> 73</span> temp = <a class="code hl_variable" href="#aed19b403f559fc5d5a4bce724f9e263c">AvailArray</a>[temp].next;</div>
<div class="line"><span class="lineno"> 74</span> }</div>
<div class="line"><span class="lineno"> 75</span> std::cout &lt;&lt; <span class="stringliteral">&quot;-1&quot;</span> &lt;&lt; std::endl;</div>
<div class="line"><span class="lineno"> 76</span>}</div>
<div class="ttc" id="alinkedlist__implentation__usingarray_8cpp_html_aed19b403f559fc5d5a4bce724f9e263c"><div class="ttname"><a href="#aed19b403f559fc5d5a4bce724f9e263c">AvailArray</a></div><div class="ttdeci">Node AvailArray[100]</div><div class="ttdoc">array that will act as nodes of a linked list.</div><div class="ttdef"><b>Definition</b> <a href="../../d3/dce/linkedlist__implentation__usingarray_8cpp_source.html#l00019">linkedlist_implentation_usingarray.cpp:19</a></div></div>
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<a id="a08ba214242a900e7251cec556b592f02" name="a08ba214242a900e7251cec556b592f02"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a08ba214242a900e7251cec556b592f02">&#9670;&#160;</a></span>freeNode()</h2>
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<td class="memname">void freeNode </td>
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<td class="paramtype">int</td> <td class="paramname"><span class="paramname"><em>nodeToBeDeleted</em></span></td><td>)</td>
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<p>This function when called will delete the node with the index presented as an argument, and will put back that node into the array. </p>
<p class="definition">Definition at line <a class="el" href="../../d3/dce/linkedlist__implentation__usingarray_8cpp_source.html#l00042">42</a> of file <a class="el" href="../../d3/dce/linkedlist__implentation__usingarray_8cpp_source.html">linkedlist_implentation_usingarray.cpp</a>.</p>
<div class="fragment"><div class="line"><span class="lineno"> 42</span> {</div>
<div class="line"><span class="lineno"> 43</span> <a class="code hl_variable" href="#aed19b403f559fc5d5a4bce724f9e263c">AvailArray</a>[nodeToBeDeleted].next = avail;</div>
<div class="line"><span class="lineno"> 44</span> avail = nodeToBeDeleted;</div>
<div class="line"><span class="lineno"> 45</span>}</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a73e11e0871f56342a30da93b6c93e8be">&#9670;&#160;</a></span>getnode()</h2>
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<td class="memname">int getnode </td>
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<p>This will return the index of the first free node present in the avail list </p>
<p class="definition">Definition at line <a class="el" href="../../d3/dce/linkedlist__implentation__usingarray_8cpp_source.html#l00032">32</a> of file <a class="el" href="../../d3/dce/linkedlist__implentation__usingarray_8cpp_source.html">linkedlist_implentation_usingarray.cpp</a>.</p>
<div class="fragment"><div class="line"><span class="lineno"> 32</span> {</div>
<div class="line"><span class="lineno"> 33</span> <span class="keywordtype">int</span> NodeIndexToBeReturned = avail;</div>
<div class="line"><span class="lineno"> 34</span> avail = <a class="code hl_variable" href="#aed19b403f559fc5d5a4bce724f9e263c">AvailArray</a>[avail].next;</div>
<div class="line"><span class="lineno"> 35</span> <span class="keywordflow">return</span> NodeIndexToBeReturned;</div>
<div class="line"><span class="lineno"> 36</span>}</div>
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<a id="ac2fa82ac5ae366cc3aca53a40bb7cd70" name="ac2fa82ac5ae366cc3aca53a40bb7cd70"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ac2fa82ac5ae366cc3aca53a40bb7cd70">&#9670;&#160;</a></span>initialise_list()</h2>
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<td class="memname">void initialise_list </td>
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<p class="definition">Definition at line <a class="el" href="../../d3/dce/linkedlist__implentation__usingarray_8cpp_source.html#l00023">23</a> of file <a class="el" href="../../d3/dce/linkedlist__implentation__usingarray_8cpp_source.html">linkedlist_implentation_usingarray.cpp</a>.</p>
<div class="fragment"><div class="line"><span class="lineno"> 23</span> {</div>
<div class="line"><span class="lineno"> 24</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt;= 98; i++) {</div>
<div class="line"><span class="lineno"> 25</span> <a class="code hl_variable" href="#aed19b403f559fc5d5a4bce724f9e263c">AvailArray</a>[i].next = i + 1;</div>
<div class="line"><span class="lineno"> 26</span> }</div>
<div class="line"><span class="lineno"> 27</span> <a class="code hl_variable" href="#aed19b403f559fc5d5a4bce724f9e263c">AvailArray</a>[99].next = -1; <span class="comment">// indicating the end of the linked list.</span></div>
<div class="line"><span class="lineno"> 28</span>}</div>
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<a id="afcb07da7984e20b3207934696791f5df" name="afcb07da7984e20b3207934696791f5df"></a>
<h2 class="memtitle"><span class="permalink"><a href="#afcb07da7984e20b3207934696791f5df">&#9670;&#160;</a></span>insertAtTheBeginning()</h2>
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<td class="memname">void insertAtTheBeginning </td>
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<td class="paramtype">int</td> <td class="paramname"><span class="paramname"><em>data</em></span></td><td>)</td>
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<p>The function will insert the given data into the front of the linked list. </p>
<p class="definition">Definition at line <a class="el" href="../../d3/dce/linkedlist__implentation__usingarray_8cpp_source.html#l00050">50</a> of file <a class="el" href="../../d3/dce/linkedlist__implentation__usingarray_8cpp_source.html">linkedlist_implentation_usingarray.cpp</a>.</p>
<div class="fragment"><div class="line"><span class="lineno"> 50</span> {</div>
<div class="line"><span class="lineno"> 51</span> <span class="keywordtype">int</span> newNode = <a class="code hl_function" href="#a73e11e0871f56342a30da93b6c93e8be">getnode</a>();</div>
<div class="line"><span class="lineno"> 52</span> <a class="code hl_variable" href="#aed19b403f559fc5d5a4bce724f9e263c">AvailArray</a>[newNode].data = <a class="code hl_variable" href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a>;</div>
<div class="line"><span class="lineno"> 53</span> <a class="code hl_variable" href="#aed19b403f559fc5d5a4bce724f9e263c">AvailArray</a>[newNode].next = head;</div>
<div class="line"><span class="lineno"> 54</span> head = newNode;</div>
<div class="line"><span class="lineno"> 55</span>}</div>
<div class="ttc" id="ahash__search_8cpp_html_a6e1a77282bc65ad359d753d25df23243"><div class="ttname"><a href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a></div><div class="ttdeci">int data[MAX]</div><div class="ttdoc">test data</div><div class="ttdef"><b>Definition</b> <a href="../../d1/df3/hash__search_8cpp_source.html#l00024">hash_search.cpp:24</a></div></div>
<div class="ttc" id="alinkedlist__implentation__usingarray_8cpp_html_a73e11e0871f56342a30da93b6c93e8be"><div class="ttname"><a href="#a73e11e0871f56342a30da93b6c93e8be">getnode</a></div><div class="ttdeci">int getnode()</div><div class="ttdef"><b>Definition</b> <a href="../../d3/dce/linkedlist__implentation__usingarray_8cpp_source.html#l00032">linkedlist_implentation_usingarray.cpp:32</a></div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#a92e0c1bb3b270143881e36b5fea8a60d">&#9670;&#160;</a></span>insertAtTheEnd()</h2>
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<td class="memname">void insertAtTheEnd </td>
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<td class="paramtype">int</td> <td class="paramname"><span class="paramname"><em>data</em></span></td><td>)</td>
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<p class="definition">Definition at line <a class="el" href="../../d3/dce/linkedlist__implentation__usingarray_8cpp_source.html#l00057">57</a> of file <a class="el" href="../../d3/dce/linkedlist__implentation__usingarray_8cpp_source.html">linkedlist_implentation_usingarray.cpp</a>.</p>
<div class="fragment"><div class="line"><span class="lineno"> 57</span> {</div>
<div class="line"><span class="lineno"> 58</span> <span class="keywordtype">int</span> newNode = <a class="code hl_function" href="#a73e11e0871f56342a30da93b6c93e8be">getnode</a>();</div>
<div class="line"><span class="lineno"> 59</span> <span class="keywordtype">int</span> temp = head;</div>
<div class="line"><span class="lineno"> 60</span> <span class="keywordflow">while</span> (<a class="code hl_variable" href="#aed19b403f559fc5d5a4bce724f9e263c">AvailArray</a>[temp].next != -1) {</div>
<div class="line"><span class="lineno"> 61</span> temp = <a class="code hl_variable" href="#aed19b403f559fc5d5a4bce724f9e263c">AvailArray</a>[temp].next;</div>
<div class="line"><span class="lineno"> 62</span> }</div>
<div class="line"><span class="lineno"> 63</span> <span class="comment">// temp is now pointing to the end node.</span></div>
<div class="line"><span class="lineno"> 64</span> <a class="code hl_variable" href="#aed19b403f559fc5d5a4bce724f9e263c">AvailArray</a>[newNode].data = <a class="code hl_variable" href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a>;</div>
<div class="line"><span class="lineno"> 65</span> <a class="code hl_variable" href="#aed19b403f559fc5d5a4bce724f9e263c">AvailArray</a>[newNode].next = -1;</div>
<div class="line"><span class="lineno"> 66</span> <a class="code hl_variable" href="#aed19b403f559fc5d5a4bce724f9e263c">AvailArray</a>[temp].next = newNode;</div>
<div class="line"><span class="lineno"> 67</span>}</div>
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<h2 class="memtitle"><span class="permalink"><a href="#ae66f6b31b5ad750f1fe042a706a4e3d4">&#9670;&#160;</a></span>main()</h2>
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<p>Main function </p>
<p class="definition">Definition at line <a class="el" href="../../d3/dce/linkedlist__implentation__usingarray_8cpp_source.html#l00079">79</a> of file <a class="el" href="../../d3/dce/linkedlist__implentation__usingarray_8cpp_source.html">linkedlist_implentation_usingarray.cpp</a>.</p>
<div class="fragment"><div class="line"><span class="lineno"> 79</span> {</div>
<div class="line"><span class="lineno"> 80</span> initialise_list();</div>
<div class="line"><span class="lineno"> 81</span> <span class="keywordtype">int</span> x, y, z;</div>
<div class="line"><span class="lineno"> 82</span> <span class="keywordflow">for</span> (;;) {</div>
<div class="line"><span class="lineno"> 83</span> std::cout &lt;&lt; <span class="stringliteral">&quot;1. Insert At The Beginning&quot;</span> &lt;&lt; std::endl;</div>
<div class="line"><span class="lineno"> 84</span> std::cout &lt;&lt; <span class="stringliteral">&quot;2. Insert At The End&quot;</span> &lt;&lt; std::endl;</div>
<div class="line"><span class="lineno"> 85</span> std::cout &lt;&lt; <span class="stringliteral">&quot;3. Display&quot;</span> &lt;&lt; std::endl;</div>
<div class="line"><span class="lineno"> 86</span> std::cout &lt;&lt; <span class="stringliteral">&quot;4.Exit&quot;</span> &lt;&lt; std::endl;</div>
<div class="line"><span class="lineno"> 87</span> std::cout &lt;&lt; <span class="stringliteral">&quot;Enter Your choice&quot;</span> &lt;&lt; std::endl;</div>
<div class="line"><span class="lineno"> 88</span> std::cin &gt;&gt; z;</div>
<div class="line"><span class="lineno"> 89</span> <span class="keywordflow">switch</span> (z) {</div>
<div class="line"><span class="lineno"> 90</span> <span class="keywordflow">case</span> 1:</div>
<div class="line"><span class="lineno"> 91</span> std::cout &lt;&lt; <span class="stringliteral">&quot;Enter the number you want to enter&quot;</span> &lt;&lt; std::endl;</div>
<div class="line"><span class="lineno"> 92</span> std::cin &gt;&gt; x;</div>
<div class="line"><span class="lineno"> 93</span> <a class="code hl_function" href="#afcb07da7984e20b3207934696791f5df">insertAtTheBeginning</a>(x);</div>
<div class="line"><span class="lineno"> 94</span> <span class="keywordflow">break</span>;</div>
<div class="line"><span class="lineno"> 95</span> <span class="keywordflow">case</span> 2:</div>
<div class="line"><span class="lineno"> 96</span> std::cout &lt;&lt; <span class="stringliteral">&quot;Enter the number you want to enter&quot;</span> &lt;&lt; std::endl;</div>
<div class="line"><span class="lineno"> 97</span> std::cin &gt;&gt; y;</div>
<div class="line"><span class="lineno"> 98</span> insertAtTheEnd(y);</div>
<div class="line"><span class="lineno"> 99</span> <span class="keywordflow">break</span>;</div>
<div class="line"><span class="lineno"> 100</span> <span class="keywordflow">case</span> 3:</div>
<div class="line"><span class="lineno"> 101</span> std::cout</div>
<div class="line"><span class="lineno"> 102</span> &lt;&lt; <span class="stringliteral">&quot;The linked list contains the following element in order&quot;</span></div>
<div class="line"><span class="lineno"> 103</span> &lt;&lt; std::endl;</div>
<div class="line"><span class="lineno"> 104</span> display();</div>
<div class="line"><span class="lineno"> 105</span> <span class="keywordflow">break</span>;</div>
<div class="line"><span class="lineno"> 106</span> <span class="keywordflow">case</span> 4:</div>
<div class="line"><span class="lineno"> 107</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><span class="lineno"> 108</span> <span class="keywordflow">default</span>:</div>
<div class="line"><span class="lineno"> 109</span> std::cout &lt;&lt; <span class="stringliteral">&quot;The entered choice is not correct&quot;</span> &lt;&lt; std::endl;</div>
<div class="line"><span class="lineno"> 110</span> }</div>
<div class="line"><span class="lineno"> 111</span> }</div>
<div class="line"><span class="lineno"> 112</span> </div>
<div class="line"><span class="lineno"> 113</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><span class="lineno"> 114</span>}</div>
<div class="ttc" id="alinkedlist__implentation__usingarray_8cpp_html_afcb07da7984e20b3207934696791f5df"><div class="ttname"><a href="#afcb07da7984e20b3207934696791f5df">insertAtTheBeginning</a></div><div class="ttdeci">void insertAtTheBeginning(int data)</div><div class="ttdef"><b>Definition</b> <a href="../../d3/dce/linkedlist__implentation__usingarray_8cpp_source.html#l00050">linkedlist_implentation_usingarray.cpp:50</a></div></div>
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<a name="doc-var-members" id="doc-var-members"></a><h2 id="header-doc-var-members" class="groupheader">Variable Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#ab84c7d9bed2aa1ade1fd61fbf5c2e07e">&#9670;&#160;</a></span>avail</h2>
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<td class="memname">int avail = 0</td>
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<p class="definition">Definition at line <a class="el" href="../../d3/dce/linkedlist__implentation__usingarray_8cpp_source.html#l00022">22</a> of file <a class="el" href="../../d3/dce/linkedlist__implentation__usingarray_8cpp_source.html">linkedlist_implentation_usingarray.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#aed19b403f559fc5d5a4bce724f9e263c">&#9670;&#160;</a></span>AvailArray</h2>
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<td class="memname"><a class="el" href="../../db/d8b/struct_node.html">Node</a> AvailArray[100]</td>
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<p>array that will act as nodes of a linked list. </p>
<p class="definition">Definition at line <a class="el" href="../../d3/dce/linkedlist__implentation__usingarray_8cpp_source.html#l00019">19</a> of file <a class="el" href="../../d3/dce/linkedlist__implentation__usingarray_8cpp_source.html">linkedlist_implentation_usingarray.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a20358970b1abaf992eb85e071e454653">&#9670;&#160;</a></span>head</h2>
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<td class="memname">int head = -1</td>
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<p class="definition">Definition at line <a class="el" href="../../d3/dce/linkedlist__implentation__usingarray_8cpp_source.html#l00021">21</a> of file <a class="el" href="../../d3/dce/linkedlist__implentation__usingarray_8cpp_source.html">linkedlist_implentation_usingarray.cpp</a>.</p>
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