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leetcode-cn/problem (Chinese)/负二进制转换 [convert-to-base-2].html
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<p>给出数字&nbsp;<code>N</code>，返回由若干&nbsp;<code>&quot;0&quot;</code>&nbsp;和&nbsp;<code>&quot;1&quot;</code>组成的字符串，该字符串为 <code>N</code>&nbsp;的<strong>负二进制（<code>base -2</code>）</strong>表示。</p>
<p>给你一个整数 <code>n</code> ，以二进制字符串的形式返回该整数的 <strong>负二进制（<code>base -2</code>）</strong>表示。</p>
<p>除非字符串就是&nbsp;<code>&quot;0&quot;</code>，否则返回的字符串中不能含有前导零。</p>
<p><strong>注意，</strong>除非字符串就是&nbsp;<code>"0"</code>，否则返回的字符串中不能含有前导零。</p>
<p>&nbsp;</p>
<p><strong>示例 1：</strong></p>
<pre><strong>输入：</strong>2
<strong>输出：</strong>&quot;110&quot;
<strong>解释：</strong>(-2) ^ 2 + (-2) ^ 1 = 2
<pre>
<strong>输入：</strong>n = 2
<strong>输出：</strong>"110"
<strong>解释：</strong>(-2)<sup>2</sup> + (-2)<sup>1</sup> = 2
</pre>
<p><strong>示例 2：</strong></p>
<pre><strong>输入：</strong>3
<strong>输出：</strong>&quot;111&quot;
<strong>解释：</strong>(-2) ^ 2 + (-2) ^ 1 + (-2) ^ 0 = 3
<pre>
<strong>输入：</strong>n = 3
<strong>输出：</strong>"111"
<strong>解释：</strong>(-2)<sup>2</sup> + (-2)<sup>1</sup> + (-2)<sup>0</sup> = 3
</pre>
<p><strong>示例 3：</strong></p>
<pre><strong>输入：</strong>4
<strong>输出：</strong>&quot;100&quot;
<strong>解释：</strong>(-2) ^ 2 = 4
<pre>
<strong>输入：</strong>n = 4
<strong>输出：</strong>"100"
<strong>解释：</strong>(-2)<sup>2</sup> = 4
</pre>
<p>&nbsp;</p>
<p><strong>提示：</strong></p>
<ol>
<li><code>0 &lt;= N &lt;= 10^9</code></li>
</ol>
<ul>
<li><code>0 &lt;= n &lt;= 10<sup>9</sup></code></li>
</ul>