Given an integer array nums, return the maximum length of a subsequence of nums whose bitwise XOR sum is not equal to $0$. If no such subsequence exists, return $0$.

Note: A subsequence is a sequence that can be derived from an array by deleting zero or more elements without changing the order of the remaining elements.

Constraints:

• $1 \leq$ nums.length $\leq 10^5$

• $0 \leq$ nums[i] $\leq 10^9$

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We have a game for you to play. Rearrange the logical building blocks to develop a clearer understanding of how to solve this problem.

Implement your solution in the following coding playground.