Solution: Single Number II
Explore how to identify two unique elements in an array of duplicates using XOR and bitwise manipulation. Learn to separate elements based on set bits and solve the problem 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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