Live2d Test Env
2018年8月27日
CodeForces - 891C： Envy（可撤销的并查集&最小生成树）
摘要： For a connected undirected weighted graph G, MST (minimum spanning tree) is a subgraph of G that contains all of G's vertices, is a tree, and sum of i 阅读全文
posted @ 2018-08-27 22:21 nimphy 阅读(496) 评论(0) 推荐(0) 编辑