因为是私站的题目，所以题面不便于公开 程序保证数组范围正确 ``` ``` by OIer_Alan @ 2021-10-21 12:05:10
题意大概是，一条路，有若干可以影响其他点的点，给出影响范围，求要添加几个点致使整条路被影响 by OIer_Alan @ 2021-10-21 12:06:42