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[bzoj2125] El camino más corto: cactus, árbol cuadrado redondo

Webbzoj2125 最短路 圆方树+倍增. Description 给一个N个点M条边的连通无向图，满足每条边最多属于一个环，有Q组询问，每次询问两点之间的最短路径。. 对于100%的数据，N<=10000，Q<=10000 Solution 写到怀疑人生。. 。. 给定的图是一个仙人掌，于是可以愉快地建圆方树。. how to join herbalife as a distributor

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