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Sep-22-backup-notes.html
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<!-- 2023-09-22 Fri 09:34 -->
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<title>Lab 4 Notes</title>
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<div id="content" class="content">
<h1 class="title">Lab 4 Notes</h1>
<div id="outline-container-org91655bd" class="outline-2">
<h2 id="org91655bd">Next Prev Binary Tree</h2>
<div class="outline-text-2" id="text-org91655bd">
</div>
<div id="outline-container-orgbdcb929" class="outline-3">
<h3 id="orgbdcb929"><code>nextAncestor()</code></h3>
<div class="outline-text-3" id="text-orgbdcb929">
<ul class="org-ul">
<li>returns the first ancestor that is
<b>next with respect to an inorder traversal</b>
or null if there is none
<ul class="org-ul">
<li><span class="underline">hint:</span> use <code>parent</code> to go up in the binary tree</li>
</ul></li>
</ul>
</div>
<div id="outline-container-org94aae84" class="outline-4">
<h4 id="org94aae84">[Example 1]</h4>
<div class="outline-text-4" id="text-org94aae84">
<ul class="org-ul">
<li>Consider node <code>g</code> in the following binary tree:</li>
</ul>
<pre class="example">
d, b, f, e, g, a, c
? ? ^ -
</pre>
<div id="orgeaf93df" class="figure">
<p><img src="./assets/images/lab4/bt1.png" alt="bt1.png" />
</p>
</div>
<ul class="org-ul">
<li>What about node <code>c</code>?</li>
</ul>
</div>
</div>
</div>
<div id="outline-container-orgc75a8db" class="outline-3">
<h3 id="orgc75a8db"><code>next()</code></h3>
<div class="outline-text-3" id="text-orgc75a8db">
<ul class="org-ul">
<li>returns <b>the next node</b> according to an inorder traversal</li>
</ul>
</div>
<div id="outline-container-orgf0df0ed" class="outline-4">
<h4 id="orgf0df0ed">[Example 2]</h4>
<div class="outline-text-4" id="text-orgf0df0ed">
<ul class="org-ul">
<li>Consider node <code>b</code> in the following binary tree:</li>
</ul>
<pre class="example">
d, b, f, e, a, c
^ -
</pre>
<div id="orgbb2c37e" class="figure">
<p><img src="./assets/images/lab4/bt2.png" alt="bt2.png" />
</p>
</div>
<ul class="org-ul">
<li>What about <code>e</code>?</li>
</ul>
<pre class="example">
d, b, f, e, a, c
^ -
</pre>
</div>
</div>
</div>
</div>
</div>
<div id="postamble" class="status">
<p class="date">Date: 2023-09-22 Fri 00:00</p>
<p class="author">Author: Tianyu Chen</p>
<p class="date">Created: 2023-09-22 Fri 09:34</p>
</div>
</body>
</html>