Leetcode 3203. Find Minimum Diameter After Merging Two Trees
Given two trees, choose one vertex from each and add an edge so the resulting tree's diameter is as small as possible. Key insight: compute each tree's diameter and center/radius — the optimal connection is between centers and the minimum possible diameter is max(d1, d2, ceil(d1/2)+1+ceil(d2/2)).
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Microsoft
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Mid December, 2025
Microsoft
Senior
The wording of the problem was different but essentially the core was this problem: https://leetcode.com/problems/find-minimum-diameter-after-merging-two-trees/description/
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