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<div id="projectbrief">Set of algorithms implemented in C++.</div>
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<p>Disjoint sets union data structure, class based representation.
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Collaboration diagram for dsu:</div>
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Public Member Functions</h2></td></tr>
<tr class="memitem:a126e3002a464e53cd54b07ba56482a72"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d1f/classdsu.html#a126e3002a464e53cd54b07ba56482a72">dsu</a> (uint64_t n)</td></tr>
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<tr class="memitem:a16851f78fe390fc1430905c83d6a2f1c"><td class="memItemLeft" align="right" valign="top">uint64_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d1f/classdsu.html#a16851f78fe390fc1430905c83d6a2f1c">findSet</a> (uint64_t i)</td></tr>
<tr class="memdesc:a16851f78fe390fc1430905c83d6a2f1c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Method to find the representative of the set to which i belongs to, T(n) = O(1) <br /></td></tr>
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<tr class="memitem:a6ac30c07abca2aaa3b291504c25c3559"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d1f/classdsu.html#a6ac30c07abca2aaa3b291504c25c3559">UnionSet</a> (uint64_t i, uint64_t j)</td></tr>
<tr class="memdesc:a6ac30c07abca2aaa3b291504c25c3559"><td class="mdescLeft">&#160;</td><td class="mdescRight">Method that combines two disjoint sets to which i and j belongs to and make a single set having a common representative. <br /></td></tr>
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<tr class="memdesc:a64d25c5986742f7c234ed449b2ff7303"><td class="mdescLeft">&#160;</td><td class="mdescRight">A utility function which check whether i and j belongs to same set or not. <br /></td></tr>
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<tr class="memdesc:a0ce2672c570f4235eafddb0c9a58115a"><td class="mdescLeft">&#160;</td><td class="mdescRight">prints the minimum, maximum and size of the set to which i belongs to <br /></td></tr>
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<tr class="memitem:a1c24228b0f2f49220133fb8c3566a55c"><td class="memItemLeft" align="right" valign="top">uint64_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d1f/classdsu.html#a1c24228b0f2f49220133fb8c3566a55c">size</a> (uint64_t i)</td></tr>
<tr class="memdesc:a1c24228b0f2f49220133fb8c3566a55c"><td class="mdescLeft">&#160;</td><td class="mdescRight">A utility function that returns the size of the set to which i belongs to. <br /></td></tr>
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<tr class="memitem:a696141b8b092466767f4bfe1c5e46cde"><td class="memItemLeft" align="right" valign="top">uint64_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d1f/classdsu.html#a696141b8b092466767f4bfe1c5e46cde">get_max</a> (uint64_t i)</td></tr>
<tr class="memdesc:a696141b8b092466767f4bfe1c5e46cde"><td class="mdescLeft">&#160;</td><td class="mdescRight">A utility function that returns the max element of the set to which i belongs to. <br /></td></tr>
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<tr class="memitem:ac713a5b496d0405c82e2808a85e58415"><td class="memItemLeft" align="right" valign="top">uint64_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d1f/classdsu.html#ac713a5b496d0405c82e2808a85e58415">get_min</a> (uint64_t i)</td></tr>
<tr class="memdesc:ac713a5b496d0405c82e2808a85e58415"><td class="mdescLeft">&#160;</td><td class="mdescRight">A utility function that returns the min element of the set to which i belongs to. <br /></td></tr>
<tr class="separator:ac713a5b496d0405c82e2808a85e58415"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a126e3002a464e53cd54b07ba56482a72"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d1f/classdsu.html#a126e3002a464e53cd54b07ba56482a72">dsu</a> (uint64_t n)</td></tr>
<tr class="memdesc:a126e3002a464e53cd54b07ba56482a72"><td class="mdescLeft">&#160;</td><td class="mdescRight">constructor for initialising all data members <br /></td></tr>
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<tr class="memitem:a16851f78fe390fc1430905c83d6a2f1c"><td class="memItemLeft" align="right" valign="top">uint64_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d1f/classdsu.html#a16851f78fe390fc1430905c83d6a2f1c">findSet</a> (uint64_t i)</td></tr>
<tr class="memdesc:a16851f78fe390fc1430905c83d6a2f1c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Method to find the representative of the set to which i belongs to, T(n) = O(logN) <br /></td></tr>
<tr class="separator:a16851f78fe390fc1430905c83d6a2f1c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a81897528bdb53fd5e796d75d7dbc430f"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d1f/classdsu.html#a81897528bdb53fd5e796d75d7dbc430f">unionSet</a> (uint64_t i, uint64_t j)</td></tr>
<tr class="memdesc:a81897528bdb53fd5e796d75d7dbc430f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Method that combines two disjoint sets to which i and j belongs to and make a single set having a common representative. <br /></td></tr>
<tr class="separator:a81897528bdb53fd5e796d75d7dbc430f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a64d25c5986742f7c234ed449b2ff7303"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d1f/classdsu.html#a64d25c5986742f7c234ed449b2ff7303">isSame</a> (uint64_t i, uint64_t j)</td></tr>
<tr class="memdesc:a64d25c5986742f7c234ed449b2ff7303"><td class="mdescLeft">&#160;</td><td class="mdescRight">A utility function which check whether i and j belongs to same set or not. <br /></td></tr>
<tr class="separator:a64d25c5986742f7c234ed449b2ff7303"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ab8ee27083a3c2e2df80755165a2ec280"><td class="memItemLeft" align="right" valign="top"><a class="elRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">vector</a>&lt; uint64_t &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d1f/classdsu.html#ab8ee27083a3c2e2df80755165a2ec280">getParents</a> (uint64_t i)</td></tr>
<tr class="memdesc:ab8ee27083a3c2e2df80755165a2ec280"><td class="mdescLeft">&#160;</td><td class="mdescRight">Method to print all the parents of i, or the path from i to representative. <br /></td></tr>
<tr class="separator:ab8ee27083a3c2e2df80755165a2ec280"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pri-attribs" name="pri-attribs"></a>
Private Attributes</h2></td></tr>
<tr class="memitem:a1ef0b0462a0dda63514f641cbb7dd8cb"><td class="memItemLeft" align="right" valign="top"><a id="a1ef0b0462a0dda63514f641cbb7dd8cb" name="a1ef0b0462a0dda63514f641cbb7dd8cb"></a>
<a class="elRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">vector</a>&lt; uint64_t &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>p</b></td></tr>
<tr class="memdesc:a1ef0b0462a0dda63514f641cbb7dd8cb"><td class="mdescLeft">&#160;</td><td class="mdescRight">keeps track of the parent of ith element <br /></td></tr>
<tr class="separator:a1ef0b0462a0dda63514f641cbb7dd8cb"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a4bf54d33fba178998dbbe4c57f2e9429"><td class="memItemLeft" align="right" valign="top"><a id="a4bf54d33fba178998dbbe4c57f2e9429" name="a4bf54d33fba178998dbbe4c57f2e9429"></a>
<a class="elRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">vector</a>&lt; uint64_t &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>depth</b></td></tr>
<tr class="memdesc:a4bf54d33fba178998dbbe4c57f2e9429"><td class="mdescLeft">&#160;</td><td class="mdescRight">tracks the <a class="el" href="../../dd/d1f/classdsu.html#a4bf54d33fba178998dbbe4c57f2e9429" title="tracks the depth(rank) of i in the tree">depth(rank)</a> of i in the tree <br /></td></tr>
<tr class="separator:a4bf54d33fba178998dbbe4c57f2e9429"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ac0dc3e17e49fe19b159b4ea4096d7b55"><td class="memItemLeft" align="right" valign="top"><a id="ac0dc3e17e49fe19b159b4ea4096d7b55" name="ac0dc3e17e49fe19b159b4ea4096d7b55"></a>
<a class="elRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">vector</a>&lt; uint64_t &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>setSize</b></td></tr>
<tr class="memdesc:ac0dc3e17e49fe19b159b4ea4096d7b55"><td class="mdescLeft">&#160;</td><td class="mdescRight">size of each chunk(set) <br /></td></tr>
<tr class="separator:ac0dc3e17e49fe19b159b4ea4096d7b55"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a4ade6f16c418fc98b54452f7b0252a53"><td class="memItemLeft" align="right" valign="top"><a id="a4ade6f16c418fc98b54452f7b0252a53" name="a4ade6f16c418fc98b54452f7b0252a53"></a>
<a class="elRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">vector</a>&lt; uint64_t &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>maxElement</b></td></tr>
<tr class="memdesc:a4ade6f16c418fc98b54452f7b0252a53"><td class="mdescLeft">&#160;</td><td class="mdescRight">maximum of each set to which i belongs to <br /></td></tr>
<tr class="separator:a4ade6f16c418fc98b54452f7b0252a53"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a1d77aad7fc39fe7140d834cd347e5c63"><td class="memItemLeft" align="right" valign="top"><a id="a1d77aad7fc39fe7140d834cd347e5c63" name="a1d77aad7fc39fe7140d834cd347e5c63"></a>
<a class="elRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">vector</a>&lt; uint64_t &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>minElement</b></td></tr>
<tr class="memdesc:a1d77aad7fc39fe7140d834cd347e5c63"><td class="mdescLeft">&#160;</td><td class="mdescRight">minimum of each set to which i belongs to <br /></td></tr>
<tr class="separator:a1d77aad7fc39fe7140d834cd347e5c63"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Disjoint sets union data structure, class based representation. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">n</td><td>number of elements </td></tr>
</table>
</dd>
</dl>
</div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
<a id="a126e3002a464e53cd54b07ba56482a72" name="a126e3002a464e53cd54b07ba56482a72"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a126e3002a464e53cd54b07ba56482a72">&#9670;&#160;</a></span>dsu() <span class="overload">[1/2]</span></h2>
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<tr>
<td class="mlabels-left">
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<td class="memname">dsu::dsu </td>
<td>(</td>
<td class="paramtype">uint64_t&#160;</td>
<td class="paramname"><em>n</em></td><td>)</td>
<td></td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">explicit</span></span> </td>
</tr>
</table>
</div><div class="memdoc">
<p>contructor for initialising all data members. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">n</td><td>number of elements </td></tr>
</table>
</dd>
</dl>
<p>initially, all of them are their own parents</p>
<p>initially all have depth are equals to zero</p>
<p>initially set size will be equals to one</p>
<div class="fragment"><div class="line"><span class="lineno"> 45</span> {</div>
<div class="line"><span class="lineno"> 46</span> <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a1ef0b0462a0dda63514f641cbb7dd8cb">p</a>.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/assign.html">assign</a>(n, 0);<span class="comment"></span></div>
<div class="line"><span class="lineno"> 47</span><span class="comment"> /// initially, all of them are their own parents</span></div>
<div class="line"><span class="lineno"> 48</span><span class="comment"></span> <span class="keywordflow">for</span> (uint64_t i = 0; i &lt; n; i++) {</div>
<div class="line"><span class="lineno"> 49</span> <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a1ef0b0462a0dda63514f641cbb7dd8cb">p</a>[i] = i;</div>
<div class="line"><span class="lineno"> 50</span> }<span class="comment"></span></div>
<div class="line"><span class="lineno"> 51</span><span class="comment"> /// initially all have depth are equals to zero</span></div>
<div class="line"><span class="lineno"> 52</span><span class="comment"></span> <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a4bf54d33fba178998dbbe4c57f2e9429">depth</a>.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/assign.html">assign</a>(n, 0);</div>
<div class="line"><span class="lineno"> 53</span> <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a4ade6f16c418fc98b54452f7b0252a53">maxElement</a>.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/assign.html">assign</a>(n, 0);</div>
<div class="line"><span class="lineno"> 54</span> <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a1d77aad7fc39fe7140d834cd347e5c63">minElement</a>.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/assign.html">assign</a>(n, 0);</div>
<div class="line"><span class="lineno"> 55</span> <span class="keywordflow">for</span> (uint64_t i = 0; i &lt; n; i++) {</div>
<div class="line"><span class="lineno"> 56</span> <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a4bf54d33fba178998dbbe4c57f2e9429">depth</a>[i] = 0;</div>
<div class="line"><span class="lineno"> 57</span> <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a4ade6f16c418fc98b54452f7b0252a53">maxElement</a>[i] = i;</div>
<div class="line"><span class="lineno"> 58</span> <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a1d77aad7fc39fe7140d834cd347e5c63">minElement</a>[i] = i;</div>
<div class="line"><span class="lineno"> 59</span> }</div>
<div class="line"><span class="lineno"> 60</span> <a class="code hl_variable" href="../../dd/d1f/classdsu.html#ac0dc3e17e49fe19b159b4ea4096d7b55">setSize</a>.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/assign.html">assign</a>(n, 0);<span class="comment"></span></div>
<div class="line"><span class="lineno"> 61</span><span class="comment"> /// initially set size will be equals to one</span></div>
<div class="line"><span class="lineno"> 62</span><span class="comment"></span> <span class="keywordflow">for</span> (uint64_t i = 0; i &lt; n; i++) {</div>
<div class="line"><span class="lineno"> 63</span> <a class="code hl_variable" href="../../dd/d1f/classdsu.html#ac0dc3e17e49fe19b159b4ea4096d7b55">setSize</a>[i] = 1;</div>
<div class="line"><span class="lineno"> 64</span> }</div>
<div class="line"><span class="lineno"> 65</span> }</div>
<div class="ttc" id="aassign_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/vector/assign.html">std::vector::assign</a></div><div class="ttdeci">T assign(T... args)</div></div>
<div class="ttc" id="aclassdsu_html_a1d77aad7fc39fe7140d834cd347e5c63"><div class="ttname"><a href="../../dd/d1f/classdsu.html#a1d77aad7fc39fe7140d834cd347e5c63">dsu::minElement</a></div><div class="ttdeci">vector&lt; uint64_t &gt; minElement</div><div class="ttdoc">minimum of each set to which i belongs to</div><div class="ttdef"><b>Definition:</b> dsu_path_compression.cpp:39</div></div>
<div class="ttc" id="aclassdsu_html_a1ef0b0462a0dda63514f641cbb7dd8cb"><div class="ttname"><a href="../../dd/d1f/classdsu.html#a1ef0b0462a0dda63514f641cbb7dd8cb">dsu::p</a></div><div class="ttdeci">vector&lt; uint64_t &gt; p</div><div class="ttdoc">keeps track of the parent of ith element</div><div class="ttdef"><b>Definition:</b> dsu_path_compression.cpp:35</div></div>
<div class="ttc" id="aclassdsu_html_a4ade6f16c418fc98b54452f7b0252a53"><div class="ttname"><a href="../../dd/d1f/classdsu.html#a4ade6f16c418fc98b54452f7b0252a53">dsu::maxElement</a></div><div class="ttdeci">vector&lt; uint64_t &gt; maxElement</div><div class="ttdoc">maximum of each set to which i belongs to</div><div class="ttdef"><b>Definition:</b> dsu_path_compression.cpp:38</div></div>
<div class="ttc" id="aclassdsu_html_a4bf54d33fba178998dbbe4c57f2e9429"><div class="ttname"><a href="../../dd/d1f/classdsu.html#a4bf54d33fba178998dbbe4c57f2e9429">dsu::depth</a></div><div class="ttdeci">vector&lt; uint64_t &gt; depth</div><div class="ttdoc">tracks the depth(rank) of i in the tree</div><div class="ttdef"><b>Definition:</b> dsu_path_compression.cpp:36</div></div>
<div class="ttc" id="aclassdsu_html_ac0dc3e17e49fe19b159b4ea4096d7b55"><div class="ttname"><a href="../../dd/d1f/classdsu.html#ac0dc3e17e49fe19b159b4ea4096d7b55">dsu::setSize</a></div><div class="ttdeci">vector&lt; uint64_t &gt; setSize</div><div class="ttdoc">size of each chunk(set)</div><div class="ttdef"><b>Definition:</b> dsu_path_compression.cpp:37</div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#a126e3002a464e53cd54b07ba56482a72">&#9670;&#160;</a></span>dsu() <span class="overload">[2/2]</span></h2>
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<td class="memname">dsu::dsu </td>
<td>(</td>
<td class="paramtype">uint64_t&#160;</td>
<td class="paramname"><em>n</em></td><td>)</td>
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<p>constructor for initialising all data members </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">n</td><td>number of elements </td></tr>
</table>
</dd>
</dl>
<p>initially all of them are their own parents</p>
<div class="fragment"><div class="line"><span class="lineno"> 44</span> {</div>
<div class="line"><span class="lineno"> 45</span> <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a1ef0b0462a0dda63514f641cbb7dd8cb">p</a>.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/assign.html">assign</a>(n, 0);<span class="comment"></span></div>
<div class="line"><span class="lineno"> 46</span><span class="comment"> /// initially all of them are their own parents</span></div>
<div class="line"><span class="lineno"> 47</span><span class="comment"></span> <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a4bf54d33fba178998dbbe4c57f2e9429">depth</a>.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/assign.html">assign</a>(n, 0);</div>
<div class="line"><span class="lineno"> 48</span> <a class="code hl_variable" href="../../dd/d1f/classdsu.html#ac0dc3e17e49fe19b159b4ea4096d7b55">setSize</a>.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/assign.html">assign</a>(n, 0);</div>
<div class="line"><span class="lineno"> 49</span> <span class="keywordflow">for</span> (uint64_t i = 0; i &lt; n; i++) {</div>
<div class="line"><span class="lineno"> 50</span> <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a1ef0b0462a0dda63514f641cbb7dd8cb">p</a>[i] = i;</div>
<div class="line"><span class="lineno"> 51</span> <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a4bf54d33fba178998dbbe4c57f2e9429">depth</a>[i] = 0;</div>
<div class="line"><span class="lineno"> 52</span> <a class="code hl_variable" href="../../dd/d1f/classdsu.html#ac0dc3e17e49fe19b159b4ea4096d7b55">setSize</a>[i] = 1;</div>
<div class="line"><span class="lineno"> 53</span> }</div>
<div class="line"><span class="lineno"> 54</span> }</div>
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<h2 class="groupheader">Member Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a16851f78fe390fc1430905c83d6a2f1c">&#9670;&#160;</a></span>findSet() <span class="overload">[1/2]</span></h2>
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<td class="memname">uint64_t dsu::findSet </td>
<td>(</td>
<td class="paramtype">uint64_t&#160;</td>
<td class="paramname"><em>i</em></td><td>)</td>
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<p>Method to find the representative of the set to which i belongs to, T(n) = O(1) </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">i</td><td>element of some set </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>representative of the set to which i belongs to. </dd></dl>
<p>using path compression</p>
<div class="fragment"><div class="line"><span class="lineno"> 73</span> {<span class="comment"></span></div>
<div class="line"><span class="lineno"> 74</span><span class="comment"> /// using path compression</span></div>
<div class="line"><span class="lineno"> 75</span><span class="comment"></span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="../../dd/d1f/classdsu.html#a1ef0b0462a0dda63514f641cbb7dd8cb">p</a>[i] == i) {</div>
<div class="line"><span class="lineno"> 76</span> <span class="keywordflow">return</span> i;</div>
<div class="line"><span class="lineno"> 77</span> }</div>
<div class="line"><span class="lineno"> 78</span> <span class="keywordflow">return</span> (<a class="code hl_variable" href="../../dd/d1f/classdsu.html#a1ef0b0462a0dda63514f641cbb7dd8cb">p</a>[i] = <a class="code hl_function" href="../../dd/d1f/classdsu.html#a16851f78fe390fc1430905c83d6a2f1c">findSet</a>(<a class="code hl_variable" href="../../dd/d1f/classdsu.html#a1ef0b0462a0dda63514f641cbb7dd8cb">p</a>[i]));</div>
<div class="line"><span class="lineno"> 79</span> }</div>
<div class="ttc" id="aclassdsu_html_a16851f78fe390fc1430905c83d6a2f1c"><div class="ttname"><a href="../../dd/d1f/classdsu.html#a16851f78fe390fc1430905c83d6a2f1c">dsu::findSet</a></div><div class="ttdeci">uint64_t findSet(uint64_t i)</div><div class="ttdoc">Method to find the representative of the set to which i belongs to, T(n) = O(1)</div><div class="ttdef"><b>Definition:</b> dsu_path_compression.cpp:73</div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#a16851f78fe390fc1430905c83d6a2f1c">&#9670;&#160;</a></span>findSet() <span class="overload">[2/2]</span></h2>
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<td>(</td>
<td class="paramtype">uint64_t&#160;</td>
<td class="paramname"><em>i</em></td><td>)</td>
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<p>Method to find the representative of the set to which i belongs to, T(n) = O(logN) </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">i</td><td>element of some set </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>representative of the set to which i belongs to </dd></dl>
<p>using union-rank</p>
<div class="fragment"><div class="line"><span class="lineno"> 61</span> {<span class="comment"></span></div>
<div class="line"><span class="lineno"> 62</span><span class="comment"> /// using union-rank</span></div>
<div class="line"><span class="lineno"> 63</span><span class="comment"></span> <span class="keywordflow">while</span> (i != <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a1ef0b0462a0dda63514f641cbb7dd8cb">p</a>[i]) {</div>
<div class="line"><span class="lineno"> 64</span> i = <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a1ef0b0462a0dda63514f641cbb7dd8cb">p</a>[i];</div>
<div class="line"><span class="lineno"> 65</span> }</div>
<div class="line"><span class="lineno"> 66</span> <span class="keywordflow">return</span> i;</div>
<div class="line"><span class="lineno"> 67</span> }</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a0ce2672c570f4235eafddb0c9a58115a">&#9670;&#160;</a></span>get()</h2>
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<td class="memname"><a class="elRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">vector</a>&lt; uint64_t &gt; dsu::get </td>
<td>(</td>
<td class="paramtype">uint64_t&#160;</td>
<td class="paramname"><em>i</em></td><td>)</td>
<td></td>
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<p>prints the minimum, maximum and size of the set to which i belongs to </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">i</td><td>element of some set </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>void </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 135</span> {</div>
<div class="line"><span class="lineno"> 136</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">vector&lt;uint64_t&gt;</a> ans;</div>
<div class="line"><span class="lineno"> 137</span> ans.push_back(<a class="code hl_function" href="../../dd/d1f/classdsu.html#ac713a5b496d0405c82e2808a85e58415">get_min</a>(i));</div>
<div class="line"><span class="lineno"> 138</span> ans.push_back(<a class="code hl_function" href="../../dd/d1f/classdsu.html#a696141b8b092466767f4bfe1c5e46cde">get_max</a>(i));</div>
<div class="line"><span class="lineno"> 139</span> ans.push_back(<a class="code hl_function" href="../../dd/d1f/classdsu.html#a1c24228b0f2f49220133fb8c3566a55c">size</a>(i));</div>
<div class="line"><span class="lineno"> 140</span> <span class="keywordflow">return</span> ans;</div>
<div class="line"><span class="lineno"> 141</span> }</div>
<div class="ttc" id="aclassdsu_html_a1c24228b0f2f49220133fb8c3566a55c"><div class="ttname"><a href="../../dd/d1f/classdsu.html#a1c24228b0f2f49220133fb8c3566a55c">dsu::size</a></div><div class="ttdeci">uint64_t size(uint64_t i)</div><div class="ttdoc">A utility function that returns the size of the set to which i belongs to.</div><div class="ttdef"><b>Definition:</b> dsu_path_compression.cpp:148</div></div>
<div class="ttc" id="aclassdsu_html_a696141b8b092466767f4bfe1c5e46cde"><div class="ttname"><a href="../../dd/d1f/classdsu.html#a696141b8b092466767f4bfe1c5e46cde">dsu::get_max</a></div><div class="ttdeci">uint64_t get_max(uint64_t i)</div><div class="ttdoc">A utility function that returns the max element of the set to which i belongs to.</div><div class="ttdef"><b>Definition:</b> dsu_path_compression.cpp:155</div></div>
<div class="ttc" id="aclassdsu_html_ac713a5b496d0405c82e2808a85e58415"><div class="ttname"><a href="../../dd/d1f/classdsu.html#ac713a5b496d0405c82e2808a85e58415">dsu::get_min</a></div><div class="ttdeci">uint64_t get_min(uint64_t i)</div><div class="ttdoc">A utility function that returns the min element of the set to which i belongs to.</div><div class="ttdef"><b>Definition:</b> dsu_path_compression.cpp:162</div></div>
<div class="ttc" id="avector_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a></div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#a696141b8b092466767f4bfe1c5e46cde">&#9670;&#160;</a></span>get_max()</h2>
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<td>(</td>
<td class="paramtype">uint64_t&#160;</td>
<td class="paramname"><em>i</em></td><td>)</td>
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<p>A utility function that returns the max element of the set to which i belongs to. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">i</td><td>element of some set </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>maximum of the set to which i belongs to </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 155</span>{ <span class="keywordflow">return</span> <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a4ade6f16c418fc98b54452f7b0252a53">maxElement</a>[<a class="code hl_function" href="../../dd/d1f/classdsu.html#a16851f78fe390fc1430905c83d6a2f1c">findSet</a>(i)]; }</div>
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<h2 class="memtitle"><span class="permalink"><a href="#ac713a5b496d0405c82e2808a85e58415">&#9670;&#160;</a></span>get_min()</h2>
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<td>(</td>
<td class="paramtype">uint64_t&#160;</td>
<td class="paramname"><em>i</em></td><td>)</td>
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<p>A utility function that returns the min element of the set to which i belongs to. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">i</td><td>element of some set </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>minimum of the set to which i belongs to </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 162</span>{ <span class="keywordflow">return</span> <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a1d77aad7fc39fe7140d834cd347e5c63">minElement</a>[<a class="code hl_function" href="../../dd/d1f/classdsu.html#a16851f78fe390fc1430905c83d6a2f1c">findSet</a>(i)]; }</div>
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<h2 class="memtitle"><span class="permalink"><a href="#ab8ee27083a3c2e2df80755165a2ec280">&#9670;&#160;</a></span>getParents()</h2>
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<td class="memname"><a class="elRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">vector</a>&lt; uint64_t &gt; dsu::getParents </td>
<td>(</td>
<td class="paramtype">uint64_t&#160;</td>
<td class="paramname"><em>i</em></td><td>)</td>
<td></td>
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<p>Method to print all the parents of i, or the path from i to representative. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">i</td><td>element of some set </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>void </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 119</span> {</div>
<div class="line"><span class="lineno"> 120</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">vector&lt;uint64_t&gt;</a> ans;</div>
<div class="line"><span class="lineno"> 121</span> <span class="keywordflow">while</span> (<a class="code hl_variable" href="../../dd/d1f/classdsu.html#a1ef0b0462a0dda63514f641cbb7dd8cb">p</a>[i] != i) {</div>
<div class="line"><span class="lineno"> 122</span> ans.push_back(i);</div>
<div class="line"><span class="lineno"> 123</span> i = <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a1ef0b0462a0dda63514f641cbb7dd8cb">p</a>[i];</div>
<div class="line"><span class="lineno"> 124</span> }</div>
<div class="line"><span class="lineno"> 125</span> ans.push_back(i);</div>
<div class="line"><span class="lineno"> 126</span> <span class="keywordflow">return</span> ans;</div>
<div class="line"><span class="lineno"> 127</span> }</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a64d25c5986742f7c234ed449b2ff7303">&#9670;&#160;</a></span>isSame() <span class="overload">[1/2]</span></h2>
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<td class="memname">bool dsu::isSame </td>
<td>(</td>
<td class="paramtype">uint64_t&#160;</td>
<td class="paramname"><em>i</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint64_t&#160;</td>
<td class="paramname"><em>j</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>A utility function which check whether i and j belongs to same set or not. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">i</td><td>element of some set </td></tr>
<tr><td class="paramname">j</td><td>element of some set </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><code>true</code> if element <code>i</code> and <code>j</code> ARE in the same set </dd>
<dd>
<code>false</code> if element <code>i</code> and <code>j</code> are NOT in same set </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 123</span> {</div>
<div class="line"><span class="lineno"> 124</span> <span class="keywordflow">if</span> (<a class="code hl_function" href="../../dd/d1f/classdsu.html#a16851f78fe390fc1430905c83d6a2f1c">findSet</a>(i) == <a class="code hl_function" href="../../dd/d1f/classdsu.html#a16851f78fe390fc1430905c83d6a2f1c">findSet</a>(j)) {</div>
<div class="line"><span class="lineno"> 125</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><span class="lineno"> 126</span> }</div>
<div class="line"><span class="lineno"> 127</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><span class="lineno"> 128</span> }</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a64d25c5986742f7c234ed449b2ff7303">&#9670;&#160;</a></span>isSame() <span class="overload">[2/2]</span></h2>
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<td class="memname">bool dsu::isSame </td>
<td>(</td>
<td class="paramtype">uint64_t&#160;</td>
<td class="paramname"><em>i</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint64_t&#160;</td>
<td class="paramname"><em>j</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>A utility function which check whether i and j belongs to same set or not. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">i</td><td>element of some set </td></tr>
<tr><td class="paramname">j</td><td>element of some set </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><code>true</code> if element i and j are in same set </dd>
<dd>
<code>false</code> if element i and j are not in same set </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 107</span> {</div>
<div class="line"><span class="lineno"> 108</span> <span class="keywordflow">if</span> (<a class="code hl_function" href="../../dd/d1f/classdsu.html#a16851f78fe390fc1430905c83d6a2f1c">findSet</a>(i) == <a class="code hl_function" href="../../dd/d1f/classdsu.html#a16851f78fe390fc1430905c83d6a2f1c">findSet</a>(j)) {</div>
<div class="line"><span class="lineno"> 109</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><span class="lineno"> 110</span> }</div>
<div class="line"><span class="lineno"> 111</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><span class="lineno"> 112</span> }</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a1c24228b0f2f49220133fb8c3566a55c">&#9670;&#160;</a></span>size()</h2>
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<td class="memname">uint64_t dsu::size </td>
<td>(</td>
<td class="paramtype">uint64_t&#160;</td>
<td class="paramname"><em>i</em></td><td>)</td>
<td></td>
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<p>A utility function that returns the size of the set to which i belongs to. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">i</td><td>element of some set </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>size of the set to which i belongs to </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 148</span>{ <span class="keywordflow">return</span> <a class="code hl_variable" href="../../dd/d1f/classdsu.html#ac0dc3e17e49fe19b159b4ea4096d7b55">setSize</a>[<a class="code hl_function" href="../../dd/d1f/classdsu.html#a16851f78fe390fc1430905c83d6a2f1c">findSet</a>(i)]; }</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a6ac30c07abca2aaa3b291504c25c3559">&#9670;&#160;</a></span>UnionSet()</h2>
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<td class="memname">void dsu::UnionSet </td>
<td>(</td>
<td class="paramtype">uint64_t&#160;</td>
<td class="paramname"><em>i</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint64_t&#160;</td>
<td class="paramname"><em>j</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</td>
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<p>Method that combines two disjoint sets to which i and j belongs to and make a single set having a common representative. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">i</td><td>element of some set </td></tr>
<tr><td class="paramname">j</td><td>element of some set </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>void </dd></dl>
<p>check if both belongs to the same set or not</p>
<p>always keeping the min as x shallow tree</p>
<p>making the shallower root's parent the deeper root</p>
<p>if same depth, then increase one's depth</p>
<p>total size of the resultant set</p>
<p>changing the maximum elements</p>
<div class="fragment"><div class="line"><span class="lineno"> 87</span> {<span class="comment"></span></div>
<div class="line"><span class="lineno"> 88</span><span class="comment"> /// check if both belongs to the same set or not</span></div>
<div class="line"><span class="lineno"> 89</span><span class="comment"></span> <span class="keywordflow">if</span> (<a class="code hl_function" href="../../dd/d1f/classdsu.html#a64d25c5986742f7c234ed449b2ff7303">isSame</a>(i, j)) {</div>
<div class="line"><span class="lineno"> 90</span> <span class="keywordflow">return</span>;</div>
<div class="line"><span class="lineno"> 91</span> }</div>
<div class="line"><span class="lineno"> 92</span> </div>
<div class="line"><span class="lineno"> 93</span> <span class="comment">// we find the representative of the i and j</span></div>
<div class="line"><span class="lineno"> 94</span> uint64_t x = <a class="code hl_function" href="../../dd/d1f/classdsu.html#a16851f78fe390fc1430905c83d6a2f1c">findSet</a>(i);</div>
<div class="line"><span class="lineno"> 95</span> uint64_t y = <a class="code hl_function" href="../../dd/d1f/classdsu.html#a16851f78fe390fc1430905c83d6a2f1c">findSet</a>(j);</div>
<div class="line"><span class="lineno"> 96</span><span class="comment"></span> </div>
<div class="line"><span class="lineno"> 97</span><span class="comment"> /// always keeping the min as x</span></div>
<div class="line"><span class="lineno"> 98</span><span class="comment"> /// shallow tree</span></div>
<div class="line"><span class="lineno"> 99</span><span class="comment"></span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="../../dd/d1f/classdsu.html#a4bf54d33fba178998dbbe4c57f2e9429">depth</a>[x] &gt; <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a4bf54d33fba178998dbbe4c57f2e9429">depth</a>[y]) {</div>
<div class="line"><span class="lineno"> 100</span> <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/algorithm/swap.html">std::swap</a>(x, y);</div>
<div class="line"><span class="lineno"> 101</span> }<span class="comment"></span></div>
<div class="line"><span class="lineno"> 102</span><span class="comment"> /// making the shallower root&#39;s parent the deeper root</span></div>
<div class="line"><span class="lineno"> 103</span><span class="comment"></span> <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a1ef0b0462a0dda63514f641cbb7dd8cb">p</a>[x] = y;</div>
<div class="line"><span class="lineno"> 104</span><span class="comment"></span> </div>
<div class="line"><span class="lineno"> 105</span><span class="comment"> /// if same depth, then increase one&#39;s depth</span></div>
<div class="line"><span class="lineno"> 106</span><span class="comment"></span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="../../dd/d1f/classdsu.html#a4bf54d33fba178998dbbe4c57f2e9429">depth</a>[x] == <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a4bf54d33fba178998dbbe4c57f2e9429">depth</a>[y]) {</div>
<div class="line"><span class="lineno"> 107</span> <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a4bf54d33fba178998dbbe4c57f2e9429">depth</a>[y]++;</div>
<div class="line"><span class="lineno"> 108</span> }<span class="comment"></span></div>
<div class="line"><span class="lineno"> 109</span><span class="comment"> /// total size of the resultant set</span></div>
<div class="line"><span class="lineno"> 110</span><span class="comment"></span> <a class="code hl_variable" href="../../dd/d1f/classdsu.html#ac0dc3e17e49fe19b159b4ea4096d7b55">setSize</a>[y] += <a class="code hl_variable" href="../../dd/d1f/classdsu.html#ac0dc3e17e49fe19b159b4ea4096d7b55">setSize</a>[x];<span class="comment"></span></div>
<div class="line"><span class="lineno"> 111</span><span class="comment"> /// changing the maximum elements</span></div>
<div class="line"><span class="lineno"> 112</span><span class="comment"></span> <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a4ade6f16c418fc98b54452f7b0252a53">maxElement</a>[y] = <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/algorithm/max.html">std::max</a>(<a class="code hl_variable" href="../../dd/d1f/classdsu.html#a4ade6f16c418fc98b54452f7b0252a53">maxElement</a>[x], <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a4ade6f16c418fc98b54452f7b0252a53">maxElement</a>[y]);</div>
<div class="line"><span class="lineno"> 113</span> <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a1d77aad7fc39fe7140d834cd347e5c63">minElement</a>[y] = <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/algorithm/min.html">std::min</a>(<a class="code hl_variable" href="../../dd/d1f/classdsu.html#a1d77aad7fc39fe7140d834cd347e5c63">minElement</a>[x], <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a1d77aad7fc39fe7140d834cd347e5c63">minElement</a>[y]);</div>
<div class="line"><span class="lineno"> 114</span> }</div>
<div class="ttc" id="aclassdsu_html_a64d25c5986742f7c234ed449b2ff7303"><div class="ttname"><a href="../../dd/d1f/classdsu.html#a64d25c5986742f7c234ed449b2ff7303">dsu::isSame</a></div><div class="ttdeci">bool isSame(uint64_t i, uint64_t j)</div><div class="ttdoc">A utility function which check whether i and j belongs to same set or not.</div><div class="ttdef"><b>Definition:</b> dsu_path_compression.cpp:123</div></div>
<div class="ttc" id="amax_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/algorithm/max.html">std::max</a></div><div class="ttdeci">T max(T... args)</div></div>
<div class="ttc" id="amin_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/algorithm/min.html">std::min</a></div><div class="ttdeci">T min(T... args)</div></div>
<div class="ttc" id="aswap_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/algorithm/swap.html">std::swap</a></div><div class="ttdeci">T swap(T... args)</div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#a81897528bdb53fd5e796d75d7dbc430f">&#9670;&#160;</a></span>unionSet()</h2>
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<td class="memname">void dsu::unionSet </td>
<td>(</td>
<td class="paramtype">uint64_t&#160;</td>
<td class="paramname"><em>i</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint64_t&#160;</td>
<td class="paramname"><em>j</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
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<p>Method that combines two disjoint sets to which i and j belongs to and make a single set having a common representative. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">i</td><td>element of some set </td></tr>
<tr><td class="paramname">j</td><td>element of some set </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>void </dd></dl>
<p>checks if both belongs to same set or not</p>
<p>we find representative of the i and j</p>
<p>always keeping the min as x in order to create a shallow tree</p>
<p>making the shallower tree, root parent of the deeper root</p>
<p>if same depth, then increase one's depth</p>
<p>total size of the resultant set</p>
<div class="fragment"><div class="line"><span class="lineno"> 75</span> {<span class="comment"></span></div>
<div class="line"><span class="lineno"> 76</span><span class="comment"> /// checks if both belongs to same set or not</span></div>
<div class="line"><span class="lineno"> 77</span><span class="comment"></span> <span class="keywordflow">if</span> (<a class="code hl_function" href="../../dd/d1f/classdsu.html#a64d25c5986742f7c234ed449b2ff7303">isSame</a>(i, j)) {</div>
<div class="line"><span class="lineno"> 78</span> <span class="keywordflow">return</span>;</div>
<div class="line"><span class="lineno"> 79</span> }<span class="comment"></span></div>
<div class="line"><span class="lineno"> 80</span><span class="comment"> /// we find representative of the i and j</span></div>
<div class="line"><span class="lineno"> 81</span><span class="comment"></span> uint64_t x = <a class="code hl_function" href="../../dd/d1f/classdsu.html#a16851f78fe390fc1430905c83d6a2f1c">findSet</a>(i);</div>
<div class="line"><span class="lineno"> 82</span> uint64_t y = <a class="code hl_function" href="../../dd/d1f/classdsu.html#a16851f78fe390fc1430905c83d6a2f1c">findSet</a>(j);</div>
<div class="line"><span class="lineno"> 83</span><span class="comment"></span> </div>
<div class="line"><span class="lineno"> 84</span><span class="comment"> /// always keeping the min as x</span></div>
<div class="line"><span class="lineno"> 85</span><span class="comment"> /// in order to create a shallow tree</span></div>
<div class="line"><span class="lineno"> 86</span><span class="comment"></span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="../../dd/d1f/classdsu.html#a4bf54d33fba178998dbbe4c57f2e9429">depth</a>[x] &gt; <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a4bf54d33fba178998dbbe4c57f2e9429">depth</a>[y]) {</div>
<div class="line"><span class="lineno"> 87</span> <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/algorithm/swap.html">std::swap</a>(x, y);</div>
<div class="line"><span class="lineno"> 88</span> }<span class="comment"></span></div>
<div class="line"><span class="lineno"> 89</span><span class="comment"> /// making the shallower tree, root parent of the deeper root</span></div>
<div class="line"><span class="lineno"> 90</span><span class="comment"></span> <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a1ef0b0462a0dda63514f641cbb7dd8cb">p</a>[x] = y;</div>
<div class="line"><span class="lineno"> 91</span><span class="comment"></span> </div>
<div class="line"><span class="lineno"> 92</span><span class="comment"> /// if same depth, then increase one&#39;s depth</span></div>
<div class="line"><span class="lineno"> 93</span><span class="comment"></span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="../../dd/d1f/classdsu.html#a4bf54d33fba178998dbbe4c57f2e9429">depth</a>[x] == <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a4bf54d33fba178998dbbe4c57f2e9429">depth</a>[y]) {</div>
<div class="line"><span class="lineno"> 94</span> <a class="code hl_variable" href="../../dd/d1f/classdsu.html#a4bf54d33fba178998dbbe4c57f2e9429">depth</a>[y]++;</div>
<div class="line"><span class="lineno"> 95</span> }<span class="comment"></span></div>
<div class="line"><span class="lineno"> 96</span><span class="comment"> /// total size of the resultant set</span></div>
<div class="line"><span class="lineno"> 97</span><span class="comment"></span> <a class="code hl_variable" href="../../dd/d1f/classdsu.html#ac0dc3e17e49fe19b159b4ea4096d7b55">setSize</a>[y] += <a class="code hl_variable" href="../../dd/d1f/classdsu.html#ac0dc3e17e49fe19b159b4ea4096d7b55">setSize</a>[x];</div>
<div class="line"><span class="lineno"> 98</span> }</div>
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