https://blog.csdn.net/yjr3426619/article/details/82315133 --->解释很清楚,有少量题目
https://www.luogu.org/problem/list?tag=175 --->洛谷联通块题基本没做
https://www.byvoid.com/zhs/blog/scc-tarjan --->比较好&全面的学习页
https://blog.csdn.net/weixin_43843835/article/details/88381828 --->忘了是啥 咋求
原文:https://www.cnblogs.com/jian-song/p/11722366.html