[LeetCode] 310. Minimum Height Trees 解题思路
rooted trees, those with minimum height are called mini ...
原文：[LeetCode] Minimum Height Trees 最小高度树
For a undirected graph with tree characteristics, we can choose any node as the root. The result graph is then a rooted tree. Among all possible rooted trees, those with minimum height are called min ...
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310. Minimum Height Trees
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