 of the tree but it's not the header.</p>
<p><span class="bold"><strong>Effects</strong></span>: Returns the number of nodes of the subtree.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Linear time.</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing. </p>
</li>
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<pre class="literallayout"><span class="keyword">static</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="idp72496208-bb"></a