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mysql: Data source rejected establishment of connection, message from server: "Too many connections"
http://www.oschina.net/question/558677_66703com.mysql.jdbc.exceptions.MySQLNonTransientConnectionException: Data source rejected establishment of conn...
分类:数据库   时间:2014-11-09 09:50:48    阅读次数:181
Bone Collector(杭电2602)(01背包)
Bone Collector Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 31604    Accepted Submission(s): 13005 Problem Description Many year...
分类:其他好文   时间:2014-11-08 23:45:44    阅读次数:355
UVA - 10574 Counting Rectangles
DescriptionProblem HCounting RectanglesInput: Standard InputOutput:Standard Output Time Limit: 3SecondsGiven n points on the XY plane, count how many ...
分类:其他好文   时间:2014-11-08 16:32:29    阅读次数:173
[leetcode]Unique Paths II
问题描述: Follow up for "Unique Paths": Now consider if some obstacles are added to the grids. How many unique paths would there be? An obstacle and empty space is marked as 1 and 0 respectively in ...
分类:其他好文   时间:2014-11-07 20:56:34    阅读次数:272
【HDOJ】1316 How Many Fibs?
Java水了。 1 import java.util.Scanner; 2 import java.math.BigInteger; 3 4 public class Main { 5 public static void main(String[] args) { 6 S...
分类:其他好文   时间:2014-11-07 18:56:09    阅读次数:260
ZOJ 3556 How Many Sets I 二项式+容斥
n个元素的子集有2^n个 求从这些子集选出k个组成有序集 并且有序集的交集为空的方案数 总数为2^n^k 减去不符合的 不符合的为交集存在1个共同元素 存在2个共同元素.... 2^n^k-C(n, 1)*2^(n-1)^k+C(n, 2)*2^(n-2)^k....  (2^k-1)^n #include #include using namespace std; typedef ...
分类:其他好文   时间:2014-11-07 17:01:40    阅读次数:251
CentOS 6.5安装MongoDB 2.6(多yum数据源)
Operation too slow. Less than 1 bytes/sec transfered the last 30 seconds' 数据源在国内访问网速过慢,可参考以下数据源: http://mongo.a.mesa.io/repo/redhat/os/x86_64/ http://downloads-distro.mongodb.org/repo/redhat/os/x86_64/ http://repo.mongodb.org/repo/redhat/os/x86_64...
分类:数据库   时间:2014-11-06 21:54:25    阅读次数:290
hadoop权威指南 chapter2 MapReduce
MapReduceMapReduce is a programming model for data processing. The model is simple, yet not too simple to express useful programs in. Hadoop can run M...
分类:其他好文   时间:2014-11-06 21:48:17    阅读次数:194
图论精炼500题
忘了从哪转的了...=============================以下是最小生成树+并查集======================================【HDU】1213 How Many Tables 基础并查集★1272 小希的迷宫 基础并查集★1325&&poj1.....
分类:其他好文   时间:2014-11-06 21:48:10    阅读次数:256
关于Plants versus Zombies游戏中的Pogo stick玩具
安全性(安全第一): Are Pogo Sticks Safe? For some reason, many people seem to regard pogo sticks as relatively dangerous toys, and many parents are fearful of their children getting hurt on a pogo sti...
分类:其他好文   时间:2014-11-06 20:10:43    阅读次数:1207
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