http://hzwer.com //Orz %%%
https://oi-wiki.org //Orz
https://www.cnblogs.com/-guz/p/9752349.html //Orz
https://stevebraveman.github.io //Orz
https://www.cnblogs.com/water-mi //Orz
https://chlience.com //Orz
https://hydingsy.github.io/articles/solution-NOIP-2018-Senior/#more //某位dalao关于NOIP2018的题解
原文：https://www.cnblogs.com/lyp-Bird/p/10391630.html