【BZOJ】3456: 城市规划
http://www.lydsy.com/JudgeOnline/problem.php?id=3456 题意:求n个点的无向连通图的方案。(n<=130000) #include & ...
http://www.lydsy.com/JudgeOnline/problem.php?id=3456 题意:求n个点的无向连通图的方案。(n<=130000) #include & ...