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leetcode-problemset/leetcode-cn/problem (Chinese)/二进制链表转整数 [convert-binary-number-in-a-linked-list-to-integer].html

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2022-03-27 20:37:52 +08:00
<p>给你一个单链表的引用结点&nbsp;<code>head</code>。链表中每个结点的值不是 0 就是 1。已知此链表是一个整数数字的二进制表示形式。</p>
<p>请你返回该链表所表示数字的 <strong>十进制值</strong></p>
<p>&nbsp;</p>
<p><strong>示例 1</strong></p>
<p><img alt="" src="https://assets.leetcode-cn.com/aliyun-lc-upload/uploads/2019/12/15/graph-1.png" style="height: 108px; width: 426px;"></p>
<pre><strong>输入:</strong>head = [1,0,1]
<strong>输出:</strong>5
<strong>解释:</strong>二进制数 (101) 转化为十进制数 (5)
</pre>
<p><strong>示例 2</strong></p>
<pre><strong>输入:</strong>head = [0]
<strong>输出:</strong>0
</pre>
<p><strong>示例 3</strong></p>
<pre><strong>输入:</strong>head = [1]
<strong>输出:</strong>1
</pre>
<p><strong>示例 4</strong></p>
<pre><strong>输入:</strong>head = [1,0,0,1,0,0,1,1,1,0,0,0,0,0,0]
<strong>输出:</strong>18880
</pre>
<p><strong>示例 5</strong></p>
<pre><strong>输入:</strong>head = [0,0]
<strong>输出:</strong>0
</pre>
<p>&nbsp;</p>
<p><strong>提示:</strong></p>
<ul>
<li>链表不为空。</li>
<li>链表的结点总数不超过&nbsp;<code>30</code></li>
<li>每个结点的值不是&nbsp;<code>0</code> 就是 <code>1</code></li>
</ul>