Go over solving a Data Structures and Algorithms (DSA) problem for practice. In this session we might go over the following problems: https://www.hackerrank.com/challenges/print-the-elements-of-a-linked-list https://www.hackerrank.com/challenges/insert-a-node-at-the-tail-of-a-linked-list https://www.hackerrank.com/challenges/insert-a-node-at-the-head-of-a-linked-list