Imperative Programming
In this lesson, you will learn imperative programming and the steps to achieve it. You will also be introduced to some real-world use cases for easy understanding.
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.