发现错误了请@我,谢谢
by zyh0516_lucky @ 2023-09-24 13:41:49
@[2022zhangyuanhao](/user/746930) if(k==(b-1)) return;这里吧
by love好o @ 2023-09-24 14:32:59
@[love好o](/user/129342) 呃这里怎么了?
by zyh0516_lucky @ 2023-09-24 14:42:57
@[love好o](/user/129342) 过了,可为什么不是b-1,这和[这个问题很像欸](https://www.luogu.com.cn/discuss/677782)
by zyh0516_lucky @ 2023-09-24 14:45:16
@[2022zhangyuanhao](/user/746930) 多加了一个点（0），还要给0点接入原树的边留位置
by love好o @ 2023-09-24 15:02:02
@[love好o](/user/129342) 谢谢,终于懂了,祝rp++
by zyh0516_lucky @ 2023-09-24 16:15:25