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mst+线段数(数组): 构建mst , dfs标id，id数组存放每个节点，每个子树的id range是连续的，然后分别从左向右，从右向左扫描，range min查询代码整理了一下，排名第二，有点不开心。。。。。 Followed by: Post your reply here: |
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