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FAQ系列 | lost connection 和 gone away
一般频繁出现的话,才需要关注,一天出现几次属于正常情况。频繁出现的原因一般有:1.网络,包括网络质量,服务器网卡驱动,程序连接数据库方式:ODBC/API,都是有区别的;这里的网络问题,可能出现在客户端,也可能出现在服务端2.如果使用ODBC的话,还需要注意部分ODBC版本可..
分类:其他好文   时间:2016-12-06 04:47:31    阅读次数:171
hdu 3045 Picnic Cows(斜率优化DP)
题目链接:hdu 3045 Picnic Cows 题意: 题解: 分析:先对n个数进行排序,则可以分析出分组成员一定是连续的 dp[i]表示前i个数得到的最少值则:从j~i作为一组 dp[i]=dp[j-1]+sum[i]-sum[j-1]-(i-j+1)*s[j];//sum[i]表示前i个数的 ...
分类:其他好文   时间:2016-12-06 02:35:16    阅读次数:204
POJ 2186 Popular Cows(Targin缩点)
传送门 Popular Cows Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 31808 Accepted: 12921 Description Every cow's dream is to become the most ...
分类:其他好文   时间:2016-12-04 23:20:14    阅读次数:237
[USACO11JAN]利润Profits
题目描述 The cows have opened a new business, and Farmer John wants to see how well they are doing. The business has been running for N (1 <= N <= 100,000 ...
分类:其他好文   时间:2016-12-04 19:46:57    阅读次数:274
USACO 3.2 Contact
The cows have developed a new interest in scanning the universe outside their farm with radiotelescopes. Recently, they noticed a very curious microwa ...
分类:其他好文   时间:2016-12-04 16:09:16    阅读次数:107
wifi 破解
基础的知识: ESSID :无线网络的名字 BSSID :是AP的mac地址 CH: 工作信道 AP :无线访问接入点 WEP WPA/WPA2 STATION :客户机mac DHCP服务 :自动分配内网ip SSID广播: 路由器 交换机 LOST Frames是交互数据量 (1)准备工作: 买 ...
分类:其他好文   时间:2016-12-02 21:52:00    阅读次数:145
POJ_2387_最短路
Til the Cows Come Home Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 46859 Accepted: 15941 Description Bessie is out in the field and wan ...
分类:其他好文   时间:2016-11-29 22:35:18    阅读次数:205
POJ 3666 Making the Grade DP
Description A straight dirt road connects two fields on FJ's farm, but it changes elevation more than FJ would like. His cows do not mind climbing up ...
分类:其他好文   时间:2016-11-28 14:40:00    阅读次数:281
[POJ2586]Y2K Accounting Bug
[POJ2586]Y2K Accounting Bug 试题描述 Accounting for Computer Machinists (ACM) has sufferred from the Y2K bug and lost some vital data for preparing annual ...
分类:其他好文   时间:2016-11-26 14:02:36    阅读次数:250
POJ3281Dining[最大流]
Dining Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 16352 Accepted: 7307 Description Cows are such finicky eaters. Each cow has a prefer ...
分类:其他好文   时间:2016-11-25 22:36:50    阅读次数:199
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