好像链式前向星快一点
by muwu @ 2024-04-11 19:03:39
看遍历次数，vector初始化慢但遍历快
by jason_sun @ 2024-04-11 19:03:40
[看这个](https://blog.csdn.net/qq_19895789/article/details/80106395)
by EricEnkAliTheFox @ 2024-04-11 19:09:28
@[ChenZQ](/user/745358)
vector方便，如果您觉得实在是慢的话可以把```push_back``` -> ```emplace_bakc```
by kevinZ99 @ 2024-04-13 11:57:00