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 / \ 2 3
- The root-to-leaf path 1->2 represents the number 12.
- The root-to-leaf path 1->3 represents the number 13.
- Return the sum = 12 + 13 = 25.
Please check the main.js snippet for the solution.
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