摘要:
Binary Spiders are species of spiders that live on Mars. These spiders weave their webs to defend themselves from enemies. To weave a web, spiders joi 阅读全文
摘要:
The Government of Mars is not only interested in optimizing space flights, but also wants to improve the road system of the planet. One of the most im 阅读全文
摘要:
神奇做法,神奇算法 #include<cstdio> #include<cstdlib> #include<stack> #include<algorithm> using namespace std; int n,m; const int N=303; int d[N][N],mn[N],f[N] 阅读全文