### Unsolved Challenges - [ ] [Square-Ten Tree](https://www.hackerrank.com/challenges/square-ten-tree/problem) - [ ] [Balanced Forest](https://www.hackerrank.com/challenges/balanced-forest/problem) + [Balanced Forest](https://www.hackerrank.com/challenges/balanced-forest/problem?h_l=interview&playlist_slugs%5B%5D=interview-preparation-kit&playlist_slugs%5B%5D=trees) - [ ] [Jenny's Subtrees](https://www.hackerrank.com/challenges/jenny-subtrees/problem) - [ ] [Kitty's Calculations on a Tree](https://www.hackerrank.com/challenges/kittys-calculations-on-a-tree/problem) - [ ] [Tree Coordinates](https://www.hackerrank.com/challenges/tree-coordinates/problem) - [ ] [Array Pairs](https://www.hackerrank.com/challenges/array-pairs/problem)
