您说的第二个数据点的输入是啥
by do_while_true @ 2020-08-02 00:04:22
我还以为是C大爷（
by do_while_true @ 2020-08-02 00:04:43
您可以看一下这个帖子
https://www.luogu.com.cn/discuss/show/237162
by do_while_true @ 2020-08-02 00:06:17
@[狙击手2405](/user/204934)
by do_while_true @ 2020-08-02 00:06:22