lass="lineno">  104</span>&#160; </div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;    <span class="comment">// Define cost of each arc.</span></div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;    <span class="comment">// [START arc_cost]</span></div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;    routing.<a class="code" href="classGoogle_1_1OrTools_1_1ConstraintSolver_1_1RoutingModel.html#ab8d61705aa429