连通性问题:
https://www.bbsmax.com/A/q4zVO4o9JK/
有向图边的分类
https://blog.csdn.net/xiehaoyun2012/article/details/8459722
https://blog.csdn.net/zz9629/article/details/84401080
bnumber:
https://blog.csdn.net/zz9629/article/details/84401266
knight moves
连通性问题:
https://www.bbsmax.com/A/q4zVO4o9JK/
有向图边的分类
https://blog.csdn.net/xiehaoyun2012/article/details/8459722
https://blog.csdn.net/zz9629/article/details/84401080
bnumber:
https://blog.csdn.net/zz9629/article/details/84401266
knight moves