Practice Minimum Cost Tree From Leaf Values
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Minimum Cost Tree From Leaf Values
Consider binary trees in which every node has either zero or two children, and the leaf values in left-to-right inorder order equal arr. Each internal node has the value obtained by multiplying the largest leaf value in its left subtree by the largest leaf value in its right subtree. Return the smallest possible sum of all internal-node values. The answer is guaranteed to fit in a 32-bit integer.
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Understanding the Minimum Cost Tree From Leaf Values Problem
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Problem Statement
Consider binary trees in which every node has either zero or two children, and the leaf values in left-to-right inorder order equal arr. Each internal node has the value obtained by multiplying the largest leaf value in its left subtree by the largest leaf value in its right subtree. Return the smallest possible sum of all internal-node values. The answer is guaranteed to fit in a 32-bit integer.
Source: Minimum Cost Tree From Leaf Values on LeetCode. Use the original task for its coding environment and submissions.
Minimum Cost Tree From Leaf Values
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Examples
# Example 1
arr = [6,2,4]
32
# Example 2
arr = [4,11]
44
Constraints
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