据说这位大佬调了一上午捏......
[朕来告诉你捷径](https://www.luogu.com.cn/problem/solution/P1953)
by Gary__NotFound @ 2023-12-03 11:05:21
@[Gary__NotFound](/user/1124780) ？
by LuoTianyi_Official @ 2023-12-03 11:29:58