没有数据点，样例过了就行
by Mecci_miaowu @ 2021-12-05 16:13:20
就是拓扑+贪心啊
by Ew_Cors @ 2021-12-05 16:14:26
把普通拓扑的队列换成优先队列就行了吧/yiw
by Sya_Resory @ 2021-12-05 16:18:35
[P3243 [HNOI2015]菜肴制作](https://www.luogu.com.cn/problem/P3243)
by yukimianyan @ 2021-12-05 16:22:23