{ "data": { "question": { "questionId": "2533", "questionFrontendId": "2425", "categoryTitle": "Algorithms", "boundTopicId": 1859566, "title": "Bitwise XOR of All Pairings", "titleSlug": "bitwise-xor-of-all-pairings", "content": "

You are given two 0-indexed arrays, nums1 and nums2, consisting of non-negative integers. There exists another array, nums3, which contains the bitwise XOR of all pairings of integers between nums1 and nums2 (every integer in nums1 is paired with every integer in nums2 exactly once).

\n\n

Return the bitwise XOR of all integers in nums3.

\n\n

 

\n

Example 1:

\n\n
\nInput: nums1 = [2,1,3], nums2 = [10,2,5,0]\nOutput: 13\nExplanation:\nA possible nums3 array is [8,0,7,2,11,3,4,1,9,1,6,3].\nThe bitwise XOR of all these numbers is 13, so we return 13.\n
\n\n

Example 2:

\n\n
\nInput: nums1 = [1,2], nums2 = [3,4]\nOutput: 0\nExplanation:\nAll possible pairs of bitwise XORs are nums1[0] ^ nums2[0], nums1[0] ^ nums2[1], nums1[1] ^ nums2[0],\nand nums1[1] ^ nums2[1].\nThus, one possible nums3 array is [2,5,1,6].\n2 ^ 5 ^ 1 ^ 6 = 0, so we return 0.\n
\n\n

 

\n

Constraints:

\n\n\n", "translatedTitle": "所有数对的异或和", "translatedContent": "

给你两个下标从 0 开始的数组 nums1 和 nums2 ,两个数组都只包含非负整数。请你求出另外一个数组 nums3 ,包含 nums1 和 nums2 中 所有数对 的异或和(nums1 中每个整数都跟 nums2 中每个整数 恰好 匹配一次)。

\n\n

请你返回 nums3 中所有整数的 异或和 。

\n\n

 

\n\n

示例 1:

\n\n
输入:nums1 = [2,1,3], nums2 = [10,2,5,0]\n输出:13\n解释:\n一个可能的 nums3 数组是 [8,0,7,2,11,3,4,1,9,1,6,3] 。\n所有这些数字的异或和是 13 ,所以我们返回 13 。\n
\n\n

示例 2:

\n\n
输入:nums1 = [1,2], nums2 = [3,4]\n输出:0\n解释:\n所有数对异或和的结果分别为 nums1[0] ^ nums2[0] ,nums1[0] ^ nums2[1] ,nums1[1] ^ nums2[0] 和 nums1[1] ^ nums2[1] 。\n所以,一个可能的 nums3 数组是 [2,5,1,6] 。\n2 ^ 5 ^ 1 ^ 6 = 0 ,所以我们返回 0 。\n
\n\n

 

\n\n

提示:

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