v class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="preprocessor">#define __CXXGRAPH_NODE_H__</span></div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160; </div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="preprocessor">#pragma once</span></div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="preprocessor">#include &lt;iostream&gt;</span></div>
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