leetcode-problemset/leetcode-cn/problem (Chinese)/平方数之和 [sum-of-square-numbers].html

<p>给定一个非负整数&nbsp;<code>c</code>&nbsp;，你要判断是否存在两个整数 <code>a</code> 和 <code>b</code>，使得&nbsp;<code>a<sup>2</sup> + b<sup>2</sup> = c</code> 。</p>

<p>&nbsp;</p>

<p><strong>示例 1：</strong></p>

<pre>
<strong>输入：</strong>c = 5
<strong>输出：</strong>true
<strong>解释：</strong>1 * 1 + 2 * 2 = 5
</pre>

<p><strong>示例 2：</strong></p>

<pre>
<strong>输入：</strong>c = 3
<strong>输出：</strong>false
</pre>

<p>&nbsp;</p>

<p><strong>提示：</strong></p>

<ul>
	<li><code>0 &lt;= c &lt;= 2<sup>31</sup> - 1</code></li>
</ul>