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"title" : "Minimum XOR Sum of Two Arrays" ,
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"content" : "<p>You are given two integer arrays <code>nums1</code> and <code>nums2</code> of length <code>n</code>.</p>\n\n<p>The <strong>XOR sum</strong> of the two integer arrays is <code>(nums1[0] XOR nums2[0]) + (nums1[1] XOR nums2[1]) + ... + (nums1[n - 1] XOR nums2[n - 1])</code> (<strong>0-indexed</strong>).</p>\n\n<ul>\n\t<li>For example, the <strong>XOR sum</strong> of <code>[1,2,3]</code> and <code>[3,2,1]</code> is equal to <code>(1 XOR 3) + (2 XOR 2) + (3 XOR 1) = 2 + 0 + 2 = 4</code>.</li>\n</ul>\n\n<p>Rearrange the elements of <code>nums2</code> such that the resulting <strong>XOR sum</strong> is <b>minimized</b>.</p>\n\n<p>Return <em>the <strong>XOR sum</strong> after the rearrangement</em>.</p>\n\n<p> </p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums1 = [1,2], nums2 = [2,3]\n<strong>Output:</strong> 2\n<b>Explanation:</b> Rearrange <code>nums2</code> so that it becomes <code>[3,2]</code>.\nThe XOR sum is (1 XOR 3) + (2 XOR 2) = 2 + 0 = 2.</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums1 = [1,0,3], nums2 = [5,3,4]\n<strong>Output:</strong> 8\n<b>Explanation:</b> Rearrange <code>nums2</code> so that it becomes <code>[5,4,3]</code>. \nThe XOR sum is (1 XOR 5) + (0 XOR 4) + (3 XOR 3) = 4 + 4 + 0 = 8.\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>n == nums1.length</code></li>\n\t<li><code>n == nums2.length</code></li>\n\t<li><code>1 <= n <= 14</code></li>\n\t<li><code>0 <= nums1[i], nums2[i] <= 10<sup>7</sup></code></li>\n</ul>\n" ,
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