6ab95970447703dcf73d01dda07a3d2">   70</a></span>&#160;  <span class="keyword">public</span> <span class="keywordtype">int</span> <a class="code" href="classGoogle_1_1OrTools_1_1Graph_1_1MaxFlow.html#ad6ab95970447703dcf73d01dda07a3d2">Head</a>(<span class="keywordtype">int</span> arc) {</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;    <span class="keywordtype">int</span> ret = <a class="code" href="classGoogle_1_1OrTools_1_1Graph_1_1operations__research__graphPINVOKE.h