今天对于内存的理解 又加深了一步：
对下面代码的理解：
class Person
{
private String name="xiaohong";
private int age=23;
private static String country="CN";
{
System.out.println(name+" "+age);
}
public Person(String...
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其他好文 时间：
2014-07-26 02:11:03
阅读次数：
189
Square Country
大意： 买一块边长为 a 的正方形地需要的钱数是 a^2， 现在输入N为钱的数目，求最少购买地的块数可以凑够N。
思路：DP，由背包思想推出来的dp[i] = min(dp[i], dp[j-i*i]+1); 方块都是由正方形组成的，所以是i*i，循环的时候也是i*i。
#include
#define min(a, b)...
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其他好文 时间：
2014-07-25 11:06:21
阅读次数：
195
1.1 查询出所有数据的指定键(name ,age ,country)db.persons.find({},{name:1,age:1,country:1,_id:0})2.查询条件2.查询条件2.1查询出年龄在25到27岁之间的学生db.persons.find({age: {$gte:25,$l...
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数据库 时间：
2014-07-23 12:13:36
阅读次数：
275
Rails
Time Limit:1000MS Memory Limit:10000KB 64bit IO Format:%I64d
& %I64u
Submit Status
Description
There is a famous railway station in PopPush City. Country there is incre...
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其他好文 时间：
2014-07-22 00:29:36
阅读次数：
210
Description
There is a famous railway station in PopPush City. Country there is incredibly hilly. The station was built in last century. Unfortunately, funds were extremely limited that time. It wa...
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其他好文 时间：
2014-07-17 10:41:03
阅读次数：
220
/*
C - 堆栈A
Time Limit:1000MS Memory Limit:10000KB 64bit IO Format:%I64d & %I64u
Submit
Status
Practice
POJ 1363
Description
There is a famous railway station in PopPush City. Country there ...
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其他好文 时间：
2014-07-12 23:56:36
阅读次数：
530
Looks like your app is ONLY available in Thailand storefront - so the lookup should include country code in the base lookup URL:http://itunes.apple.co...
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移动开发 时间：
2014-07-06 15:28:03
阅读次数：
547
There is a famous railway station in PopPush City. Country there is incredibly hilly. The station was built in last century. Unfortunately, funds were extremely limited that time. It was possible to e...
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其他好文 时间：
2014-06-16 11:17:45
阅读次数：
162
package 单例模式; import java.awt.List;import
java.util.ArrayList;import java.util.Arrays; public class Country implements
Comparable{ int jin; int yin; i...
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其他好文 时间：
2014-06-13 15:38:12
阅读次数：
183
