摘要：
http://acm.hdu.edu.cn/showproblem.php?pid=1599floyd真的是水很深啊 各种神奇ans=min(ans,g[i][k]+g[k][j]+d[i][j]);#include#include#include#include#include#include#i... 阅读全文
摘要：
DescriptionAssume the coasting is an infinite straight line.Land is in one side of coasting, sea in the other.Each small island is a point locating in... 阅读全文