">        Insert a node in the Treap after *where* (a node of the CTreap).</span>
<span class="sd">        Idea : If *where* doesn&#39;t have any right children, given the fact that the current node</span>
<span class="sd">        come after *where*, we can add it directly, it respects the order.</span>
<span class="sd">        Otherwise the idea is to put it just before the node that come after *where*</span>
<span class="sd">        so as the left children of the successor of *where*.</span>

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