Solution: Single Number II
Explore how to solve the Single Number II problem by using bitwise XOR operations. Understand how to differentiate two unique elements in an array where all others appear twice, using efficient constant space and linear time techniques. This lesson demonstrates applying bitwise manipulation to optimize your coding interview solutions.
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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