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/concatenation-of-array
https://leetcode.com/problems/the-two-sneaky-numbers-of-digitville
https://leetcode.com/problems/find-minimum-operations-to-make-all-elements-divisible-by-three