Solution: Single Number II
Understand how to solve the Single Number II problem by using bitwise XOR operations to find two unique numbers in an array where others appear twice. Explore dividing elements based on the rightmost set bit to separate unique elements with a solution that runs in linear time and uses constant space.
We'll cover the following...
We'll cover the following...
Statement
Given a non-empty array arr, in which exactly two elements appear once, and all the other elements appear twice, return the two elements that appeared only once.
Note: The result can be returned in any order. The solution should use only constant extra space.
Constraints:
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