http://poj.org/problem? id=1741 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 v. Give an integer k,for every pair (u,v) of vertices is called va…
Maya Calendar Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 64795 Accepted: 19978 Description During his last sabbatical, professor M. A. Ya made a surprising discovery about the old Maya calendar. From an old knotted message, profes…