Single Number II
Understand how to find two unique elements in an array where others appear twice by applying bitwise manipulation. This lesson helps you implement efficient solutions that use constant extra space for coding interview problems.
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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