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摘要: Big Christmas Tree 题目链接 解题思路 price of an edge will be (sum of weights of all descendant nodes) × (unit price of the edge). 每条边的代价为孩子节点总重量的和*边的单位代价; 通过 阅读全文
posted @ 2018-07-28 22:13 lif323 阅读(174) 评论(0) 推荐(0)