ow tree, the bottom-rightmost non-leaf node is <span style="background-color: #ffcc99;">38</span>, which</span></em><br /><em><span style="color: #236fa1;">   // is the parent of the bottom-rightmost node in the tree (<span style="background-color: #eccafa;">12</span>). (All the nodes to<br />   // the right of 38, as well as all the nodes on levels below it, are leaf nodes.)</span></em><br /><em><span style="color: #236fa1;">   //</span></em><br /><em><span style="color: #236fa1;">   // (Note that this is 