摘要:
2152: 聪聪可可 http://www.lydsy.com/JudgeOnline/problem.php?id=2152 Description 聪聪和可可是兄弟俩,他们俩经常为了一些琐事打起来,例如家中只剩下最后一根冰棍而两人都想吃、两个人都想玩儿电脑(可是他们家只有一台电脑)……遇到这种问 阅读全文
摘要:
POJ 1741 Tree Description Give a tree with n vertices,each edge has a length(positive integer less than 1001). Define dist(u,v)=The min distance betwe 阅读全文