pan class="lineno">   60</span>&#160;<span class="comment">// for (int node = 0; node &lt; num_nodes; ++node) {</span></div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;<span class="comment">//   group[components.GetClassRepresentative(node)].push_back(node);</span></div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;<span class="comment">// }</span></div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;<span cla