Solution: Single Number II
Explore how to use bitwise XOR manipulation to find two unique numbers in an array where all other elements appear twice. This lesson teaches an efficient algorithm with constant space usage, helping you master bitwise techniques for coding interviews.
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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