Range XOR Pairs
Solve a hard-level problem of finding the count of pairs with their XOR value in a range using tries.
Problem statement
Given an integer array nums
and a range in the form of [low, high]
, return the count of pairs(i, j)
such that 0 <= i < j < nums.size
and low <= (nums[i] XOR nums[j]) <= high
.
Example 1
Sample input
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