Single Number II
Explore how to use bitwise operations to find two unique elements in an array where every other element appears twice. Understand problem constraints and implement an efficient Python solution that uses constant extra space. This lesson helps you apply bitwise techniques to optimize 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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