给出一个森林，每棵树均为一组物品，首先推出每棵树可以组成的物品种类。
然后是基本的分组背包模板。
即 最外层枚举组数，次外层枚举背包容量，内层枚举物品体积。
对于每棵树有 ans[root][i+j] = ans[root][ i ] + ans[son][ j ]。
题水数据也水，不多说了。
#include
#include
#include
#include
#in...
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其他好文 时间：
2014-07-22 23:05:52
阅读次数：
387
Java的泛型是什么呢， 就是类型的参数化，也就是原本该是确定类型的地方换成了变量，把类型的确定时间向后延迟了。
在之前，学过“重载”的概念，重载是什么呢，举例来说
public class Test{
// 处理整型数据
void receive(int i) {
System.out.println("Received one int data");
System.ou...
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编程语言 时间：
2014-07-22 23:04:34
阅读次数：
324
去网站下载mysql的yum源，地址如下：
http://repo.mysql.com/
在linux上先查看系统的版本号，根据版本号对应下载
more /etc/redhat-release
rpm -Uvh
http://repo.mysql.com/mysql-community-release-el6-5.noarch.rpm
yum -y upgrade mysql
m...
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数据库 时间：
2014-07-22 23:03:13
阅读次数：
472
题目： Given a string S, find the longest palindromic
substring in S. You may assume that the maximum length of S is 1000, and there
exists one unique lo...
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其他好文 时间：
2014-05-01 20:07:13
阅读次数：
429
RecursionIt is legal for one function to call
another; it is also legal for a function to call itself. It may not be obvious
why what is a good thing,...
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其他好文 时间：
2014-05-01 18:40:44
阅读次数：
302
Merge k Sorted Lists
Total Accepted: 9746 Total
Submissions: 41674My Submissions
Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity....
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其他好文 时间：
2014-05-01 17:11:32
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234
More is better
Time Limit: 5000/1000 MS (Java/Others) Memory Limit: 327680/102400 K (Java/Others)
Total Submission(s): 13119 Accepted Submission(s): 4800
Problem Description
Mr Wang ...
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其他好文 时间：
2014-04-30 22:24:39
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285
Background:
It's fairly common for businesses to want to provide some high availability for their SQL Server databases, and one option is to have two SQL Server databases on separate machines with a SQL Server database mirrored....
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数据库 时间：
2014-04-30 22:11:38
阅读次数：
520
I am honored to be with you today at your commencement from one of the finest universities in the world. I never graduated from college. Truth be told, this is the closest I've ever gotten to a colleg...
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其他好文 时间：
2014-04-29 13:46:22
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337
1D people lived in a 1D country. Everything in the country was one-dimensional, and everything was simple and clear: just one axis and two directions — forward and backward. Even a 1D world has proble...
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其他好文 时间：
2014-04-29 13:44:22
阅读次数：
284
