421. Maximum XOR of Two Numbers in an Array
Array
Hash Table
Bit Manipulation
Trie
Given an integer array nums, return the maximum result of nums[i] XOR nums[j], where 0 <= i <= j < n.
Examples
Example 1
Input: nums = [3,10,5,25,2,8]
Output: 28
Explanation: The maximum result is 5 XOR 25 = 28.
Example 2
Input: nums = [14,70,53,83,49,91,36,80,92,51,66,70]
Output: 127
Constraints
1 <= nums.length <= 2 * 1050 <= nums[i] <= 231 - 1