@[kirihara233](/user/701221) ？[真的可以](https://www.luogu.com.cn/blog/five20/solution-p1801) by Flamming @ 2022-08-10 14:38:17
我觉得这个题最少应该也是绿吧，毕竟主席树模板还是蓝呢 by L_life @ 2022-10-13 08:27:01