- Highly recommended to watch before doing the coding challenge
- Information on Data Structures and Algorithms
- Introduction to Big O Notation and Time Complexity
- https://www.hackerrank.com/challenges/ctci-bfs-shortest-reach/problem
- https://www.hackerrank.com/challenges/tree-height-of-a-binary-tree
- https://www.hackerrank.com/challenges/tree-level-order-traversal
- https://www.hackerrank.com/challenges/balanced-brackets
- https://www.hackerrank.com/challenges/contacts
- https://www.hackerrank.com/challenges/find-the-running-median
- https://www.hackerrank.com/challenges/swap-nodes-algo