Practice Solving Data Structures and Algorithms Problems

Go over solving a Data Structures and Algorithms (DSA) problem for practice.
In this session we might go over the following problems:
https://leetcode.com/problems/find-the-maximum-achievable-number
https://leetcode.com/problems/defanging-an-ip-address
https://leetcode.com/problems/divisible-and-non-divisible-sums-difference