Reverse Array: Array In-Place Algorithm
In this lesson, you will learn how to modify the input array to save some space.
Single Number coding question, can be easily solved with XOR bitwise technique with linear time complexity.
In this lesson, every element appears twice except one element. We solve this using naive, and then we move to solve it more optimally using XOR operator.
We solved the problem using lookup (hashtable), using the mathematical formula. Let's solve this more efficiently using bit-level operations with XOR and then optimize the solution.