Maximum Sum Among Longest Root-to-Leaf Paths
Problem statement
Given a nonempty binary tree, consider every path that starts at the root and ends at a leaf. The length of a path is its number of nodes, and its sum is the sum of those node values.
The problem statement continues
ProExamples
Example 1
root = [1,2,3,4,null,5,6]return = 10The longest paths contain three nodes. Their sums are 1 + 2 + 4 = 7, 1 + 3 + 5 = 9, and 1 + 3 + 6 = 10, so return 10.
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