ss="comment">//</span></div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;<span class="comment">// Keywords: graph, connected components.</span></div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160; </div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> NodeIndex, <span class="keyword">typename</span> ArcIndex&gt;</div>
<div class="line