并查集

知道“人言可畏”吗？在我们的生活中，尤其在现有的网络上，存在一些广泛传播的谣言。今天我们在一个群体中研究这个问题：



（1）一个群体中存在一些两两之间的朋友关系；



（2）一个人发布“谣言”；



（3）一个人在知道“谣言”时，会告诉他（她）的朋友；



请你判断是否所有人最终都知道谣言。-Richard Sets and know " a fearful thing,"　right? In our lives, particularly in the existing network, there are widespread rumors. Today, we are in a group studying the issue: (1) a group of 22 there are some relationships between the friends　(2) the publication of a " rumor"　 (3) a person in the know " rumors"　will tell his (her) friends　to determine whether you all know that eventually all rumors.