Minimum XOR Pair
Detailed guide and Python implementation for the 'Minimum XOR Pair' problem.
Problem Statement
Write a function min_xor_pair(arr) that takes an array of non-negative integers arr and returns the minimum XOR sum of any two elements in the array.
- •2 <= len(arr) <= 10^5
- •0 <= arr[i] <= 10^9
Examples
min_xor_pair([9, 5, 3])
6
9^5 = 12, 9^3 = 10, 5^3 = 6. The minimum is 6.
min_xor_pair([1, 2, 3, 4])
1
2^3 = 1, which is the minimum XOR sum.
Need a Hint?
Edge Cases to Watch
- Empty input structures
- Single element inputs
- Large numerical bounds
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