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krahets
2023-07-26 08:59:03 +08:00
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<h2 id="1021">10.2.1. &nbsp; 线性方法<a class="headerlink" href="#1021" title="Permanent link">&para;</a></h2>
<p>为了查找数组中最左边的 <code>target</code> ，我们可以分为两步：</p>
<ol>
<li>进行二分查找，定位到任意一个 <code>target</code> 的索引，记为 <span class="arithmatex">\(k\)</span> ；</li>
<li>进行二分查找，定位到任意一个 <code>target</code> 的索引，记为 <span class="arithmatex">\(k\)</span> 。</li>
<li>以索引 <span class="arithmatex">\(k\)</span> 为起始点，向左进行线性遍历，找到最左边的 <code>target</code> 返回即可。</li>
</ol>
<p><img alt="线性查找最左边的元素" src="../binary_search_edge.assets/binary_search_left_edge_naive.png" /></p>