精选例题链接

 

刮号树

https://www.cnblogs.com/zhuier-xquan/p/11912689.html

拓扑排序

https://www.cnblogs.com/bigsai/p/11489260.html

硬币购物

https://www.luogu.com.cn/problem/solution/P1450

动态规划套路详解