[91pts链接](https://www.luogu.com.cn/record/114352878)
by liruixiongxh @ 2023-07-07 19:33:19
@[liruixiongxh](/user/890185)
这题我63pts，我也不会
by jlwz @ 2023-07-07 19:40:42
emm，6
by liruixiongxh @ 2023-07-07 19:44:48
by kevin1616 @ 2023-07-07 19:47:35
问题出来了，右端点的范围有问题，此贴结。
by liruixiongxh @ 2023-07-07 20:32:10