Practice Sum of Nodes with Even-Valued Grandparent
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Sum of Nodes with Even-Valued Grandparent
Given the root of a binary tree, return the sum of values of nodes with an even-valued grandparent. If there are no nodes with an even-valued grandparent, return 0. A grandparent of a node is the parent of its parent if it exists.
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Understanding the Sum of Nodes with Even-Valued Grandparent Problem
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Problem Statement
Given the root of a binary tree, return the sum of values of nodes with an even-valued grandparent. If there are no nodes with an even-valued grandparent, return 0. A grandparent of a node is the parent of its parent if it exists.
Source: Sum of Nodes with Even-Valued Grandparent on LeetCode. Use the original task for its coding environment and submissions.
Sum of Nodes with Even-Valued Grandparent
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Examples
# Example 1
root = [6,7,8,2,7,1,3,9,null,1,4,null,null,null,5]
18
# Example 2
root = [1]
0
Constraints
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