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								<div class="subTitle">org.jgrapht.alg.util</div>
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								<h2 title="Class UnionFind" class="title">Class UnionFind<T></h2>
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								<li>org.jgrapht.alg.util.UnionFind<T></li>
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								<pre>public class <span class="strong">UnionFind<T></span>
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								extends <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre>
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								<div class="block">An implementation of <a
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								 href="http://en.wikipedia.org/wiki/Disjoint-set_data_structure">Union
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								 Find</a> data structure. Union Find is a disjoint-set data structure. It
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								 supports two operations: finding the set a specific element is in, and
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								 merging two sets. The implementation uses union by rank and path compression
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								 to achieve an amortized cost of O(a(n)) per operation where a is the inverse
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								 Ackermann function. UnionFind uses the hashCode and equals method of the
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								 elements it operates on.</div>
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								<dl><dt><span class="strong">Since:</span></dt>
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								  <dd>Feb 10, 2010</dd>
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								<dt><span class="strong">Author:</span></dt>
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								  <dd>Tom Conerly</dd></dl>
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								<h3>Constructor Summary</h3>
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								<td class="colOne"><code><strong><a href="../../../../org/jgrapht/alg/util/UnionFind.html#UnionFind(java.util.Set)">UnionFind</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a><<a href="../../../../org/jgrapht/alg/util/UnionFind.html" title="type parameter in UnionFind">T</a>> elements)</code>
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								<div class="block">Creates a UnionFind instance with all of the elements of elements in
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								 seperate sets.</div>
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								<th class="colFirst" scope="col">Modifier and Type</th>
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								<td class="colFirst"><code>void</code></td>
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								<td class="colLast"><code><strong><a href="../../../../org/jgrapht/alg/util/UnionFind.html#addElement(T)">addElement</a></strong>(<a href="../../../../org/jgrapht/alg/util/UnionFind.html" title="type parameter in UnionFind">T</a> element)</code>
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								<div class="block">Adds a new element to the data structure in its own set.</div>
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								<td class="colFirst"><code><a href="../../../../org/jgrapht/alg/util/UnionFind.html" title="type parameter in UnionFind">T</a></code></td>
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								<td class="colLast"><code><strong><a href="../../../../org/jgrapht/alg/util/UnionFind.html#find(T)">find</a></strong>(<a href="../../../../org/jgrapht/alg/util/UnionFind.html" title="type parameter in UnionFind">T</a> element)</code>
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								<div class="block">Returns the representative element of the set that element is in.</div>
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								<td class="colFirst"><code>protected <a href="http://docs.oracle.com/javase/7/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<a href="../../../../org/jgrapht/alg/util/UnionFind.html" title="type parameter in UnionFind">T</a>,<a href="../../../../org/jgrapht/alg/util/UnionFind.html" title="type parameter in UnionFind">T</a>></code></td>
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								<td class="colLast"><code><strong><a href="../../../../org/jgrapht/alg/util/UnionFind.html#getParentMap()">getParentMap</a></strong>()</code> </td>
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								<td class="colFirst"><code>protected <a href="http://docs.oracle.com/javase/7/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<a href="../../../../org/jgrapht/alg/util/UnionFind.html" title="type parameter in UnionFind">T</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>></code></td>
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								<td class="colLast"><code><strong><a href="../../../../org/jgrapht/alg/util/UnionFind.html#getRankMap()">getRankMap</a></strong>()</code> </td>
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								<td class="colFirst"><code>void</code></td>
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								<td class="colLast"><code><strong><a href="../../../../org/jgrapht/alg/util/UnionFind.html#union(T,%20T)">union</a></strong>(<a href="../../../../org/jgrapht/alg/util/UnionFind.html" title="type parameter in UnionFind">T</a> element1,
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								     <a href="../../../../org/jgrapht/alg/util/UnionFind.html" title="type parameter in UnionFind">T</a> element2)</code>
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								<div class="block">Merges the sets which contain element1 and element2.</div>
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								<code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait(long,%20int)" title="class or interface in java.lang">wait</a></code></li>
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								<h3>Constructor Detail</h3>
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								<a name="UnionFind(java.util.Set)">
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								<h4>UnionFind</h4>
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								<pre>public UnionFind(<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a><<a href="../../../../org/jgrapht/alg/util/UnionFind.html" title="type parameter in UnionFind">T</a>> elements)</pre>
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								<div class="block">Creates a UnionFind instance with all of the elements of elements in
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								<h3>Method Detail</h3>
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								<h4>addElement</h4>
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								<pre>public void addElement(<a href="../../../../org/jgrapht/alg/util/UnionFind.html" title="type parameter in UnionFind">T</a> element)</pre>
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								<div class="block">Adds a new element to the data structure in its own set.</div>
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								<dl><dt><span class="strong">Parameters:</span></dt><dd><code>element</code> - The element to add.</dd></dl>
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								<h4>getParentMap</h4>
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								<pre>protected <a href="http://docs.oracle.com/javase/7/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<a href="../../../../org/jgrapht/alg/util/UnionFind.html" title="type parameter in UnionFind">T</a>,<a href="../../../../org/jgrapht/alg/util/UnionFind.html" title="type parameter in UnionFind">T</a>> getParentMap()</pre>
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								<dl><dt><span class="strong">Returns:</span></dt><dd>map from element to parent element</dd></dl>
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								<h4>getRankMap</h4>
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								<pre>protected <a href="http://docs.oracle.com/javase/7/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a><<a href="../../../../org/jgrapht/alg/util/UnionFind.html" title="type parameter in UnionFind">T</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>> getRankMap()</pre>
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								<dl><dt><span class="strong">Returns:</span></dt><dd>map from element to rank</dd></dl>
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								<a name="find(java.lang.Object)">
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								<h4>find</h4>
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								<pre>public <a href="../../../../org/jgrapht/alg/util/UnionFind.html" title="type parameter in UnionFind">T</a> find(<a href="../../../../org/jgrapht/alg/util/UnionFind.html" title="type parameter in UnionFind">T</a> element)</pre>
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								<div class="block">Returns the representative element of the set that element is in.</div>
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								<dl><dt><span class="strong">Parameters:</span></dt><dd><code>element</code> - The element to find.</dd>
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								<dt><span class="strong">Returns:</span></dt><dd>The element representing the set the element is in.</dd></dl>
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								<h4>union</h4>
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								<pre>public void union(<a href="../../../../org/jgrapht/alg/util/UnionFind.html" title="type parameter in UnionFind">T</a> element1,
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								         <a href="../../../../org/jgrapht/alg/util/UnionFind.html" title="type parameter in UnionFind">T</a> element2)</pre>
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								<div class="block">Merges the sets which contain element1 and element2.</div>
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								<dl><dt><span class="strong">Parameters:</span></dt><dd><code>element1</code> - The first element to union.</dd><dd><code>element2</code> - The second element to union.</dd></dl>
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