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).
Return the bitwise XOR of all integers in nums3.
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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
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Constraints:
\n\n1 <= nums1.length, nums2.length <= 1050 <= nums1[i], nums2[j] <= 109Compiled with clang 11 using the latest C++ 20 standard.
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Most standard library headers are already included automatically for your convenience.
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