Tarjan缩点后求入度为0的点，即是要求最少电话。#include #include #include #include using namespace std;int cst[1010];struct Edge{ int u,v; int next;}edge[2010];int head[10...
先用tarjan缩点， 然后入度为0的点就是必须要选择点同时也是最小的情况。Summer HolidayTime Limit: 10000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1098Accepted Submission(s): 474Problem DescriptionTo see a World in a Grain of SandAnd a Heaven in a Wild Flower,Hold Infinity in the palm of your
Summer HolidayTime Limit: 10000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1147Accepted Submission(s): 503Problem DescriptionTo see a World in a Grain of SandAnd a Heaven in a Wild Flower,Hold Infinity in the palm of your handAnd Eternity in an hour.—— William
今早起来，突然发现自己的mysql和navicat链接不上了，输入正确的密码也显示的是连接不上，查了很多资料，这里记录一下。说明下系统是win10，mysql版本是8.0.14下载完mysql后，无论如何也无法登录进去，花了小半天时间才弄明白如何成功登录。首先遇到了以下问题 ERROR 1045 (28000): Access denied for user ‘root’@‘localhost’
遇到一个mysql的错误！120822 2:37:33 InnoDB: ERROR: the age of the last checkpoint is 9437013,InnoDB: which exceeds the log group capacity 9433498.InnoDB: If you are using big BLOB or TEXT rows, yo
