2017年3月7日
poj1741 Tree（点分治）
摘要： Description Give a tree with n vertices,each edge has a length(positive integer less than 1001). Define dist(u,v)=The min distance between node u and 阅读全文
posted @ 2017-03-07 23:56 Klaier 阅读(159) 评论(0) 推荐(0)