Solution: Single Number II
Understand how to solve the Single Number II problem by applying bitwise XOR operations to separate and identify two unique elements in an array. This lesson guides you through using bitwise masks and efficient grouping to achieve a solution with linear time and constant space usage.
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:
arr.length...