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<p>给定两个整数数组,请交换一对数值(每个数组中取一个数值),使得两个数组所有元素的和相等。</p>
<p>返回一个数组,第一个元素是第一个数组中要交换的元素,第二个元素是第二个数组中要交换的元素。若有多个答案,返回任意一个均可。若无满足条件的数值,返回空数组。</p>
<p><strong>示例 1</strong></p>
<pre>
<strong>输入:</strong>array1 = [4, 1, 2, 1, 1, 2], array2 = [3, 6, 3, 3]
<strong>输出:</strong>[1, 3]
</pre>
<p><strong>示例 2</strong></p>
<pre>
<strong>输入:</strong>array1 = <code>[1, 2, 3], array2 = [4, 5, 6]</code>
<strong>输出:</strong>[]</pre>
<p><strong>提示:</strong></p>
<ul>
<li><code>1 &lt;= array1.length, array2.length &lt;= 100000</code></li>
</ul>