Copyright 2019 - Matt Harrison
@__mharrison__
Use Python to:
| """ | |
| Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a number. | |
| An example is the root-to-leaf path 1->2->3 which represents the number 123. | |
| Find the total sum of all root-to-leaf numbers. | |
| For example, | |
| 1 |