Solution: Single Number II
Explore how to use bitwise XOR operations to identify two unique numbers in an array where all other elements appear twice. Understand the step-by-step algorithm to separate these numbers efficiently with constant extra space and linear time complexity.
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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