POJ 1741 Tree + POJ 1987 Distance Statistics【树的点分治】
Tree Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 13558 Accepted: 4367 DescriptionGive a tree with n vertices,each edge has a length(positive integer less than 1001). Def
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2015-08-03 23:40:44 ·
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