zcmu--1435--1930(并查集)
目录zcmu-1435: 盟国(带删除的并查集)zcmu-1930: 帽子戏法1435: 盟国Time Limit: 3 Sec Memory Limit: 128 MBSubmit: 457 Solved: 105[Submit][Status][Web Board]Description世界上存在着N个国家,简单起见,编号从0~N-1,假如a国和b国是盟国,b...