摘要：
http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=2031题目大意：给定一个n个点m条边的加权有向图，求平均权值最小的回路。思路：用二分法求解。假设答案为mid... 阅读全文
摘要：
http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&category=&problem=1544&mosmsg=Submission+received+with+ID+13026... 阅读全文