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Best Time to Buy and Sell Stock
Say you have an array for which the ith element is the price of a given stock on day i.If you were only permitted to complete at most one transaction ...
分类:其他好文   时间:2014-08-14 20:30:19    阅读次数:197
java之观察者模式
import java.util.Observable; import java.util.Observer; class House extends Observable { private float price; public float getPrice() { return price; ...
分类:编程语言   时间:2014-08-14 16:38:08    阅读次数:220
struct(C# 参考)
struct类型是一种值类型,通常用来封装小型相关变量组,例如,矩形的坐标或库存商品的特征。下面的示例显示了一个简单的结构声明。1 public struct Book2 {3 public decimal price;4 public string title;5 publ...
分类:其他好文   时间:2014-08-11 21:11:02    阅读次数:183
linq中使用case when
select中使用case whenlinq代码:Products.Select(P => new{ID = P.ProductID,Name = P.Name,Color = P.Color,Price = (P.Color == "Red" ? P.StandardCost : (P.Color...
分类:其他好文   时间:2014-08-11 11:39:02    阅读次数:726
项目笔记2
daily price中应该有联合主键,这样插入就不会重复了,不过不要紧。组合主键alter table tb_ul_daily add PRIMARY KEY(ul_id,trading_date)删除重复记录delete from tb_ul_daily where id in (select....
分类:其他好文   时间:2014-08-11 02:44:41    阅读次数:179
CF# 260 A. Laptops
One day Dima and Alex had an argument about the price and quality of laptops. Dima thinks that the more expensive a laptop is, the better it is. Alex disagrees. Alex thinks that there are two laptops,...
分类:其他好文   时间:2014-08-09 11:47:17    阅读次数:276
[leetcode]Best Time to Buy and Sell Stock
Best Time to Buy and Sell StockSay you have an array for which theithelement is the price of a given stock on dayi.If you were only permitted to compl...
分类:其他好文   时间:2014-08-07 00:20:37    阅读次数:185
[leetcode]Best Time to Buy and Sell Stock II
Best Time to Buy and Sell Stock IISay you have an array for which theithelement is the price of a given stock on dayi.Design an algorithm to find the ...
分类:其他好文   时间:2014-08-07 00:20:17    阅读次数:257
oracle 笔记
向表里添加数据:INSERT INTO BOOK(bookid,name,price) VALUES('100123','oracle sql',54.70);INSERT INTOBOOK VALUES('100123','oracle sql',54.70);INSERT INTOBOOK(.....
分类:数据库   时间:2014-08-03 22:52:26    阅读次数:261
Java学习之Xml系列三:dtd校验、改、增、删
见摘要、见代码注释,其他话不多说: DTD文档: <?xml?version="1.0"?encoding="UTF-8"?> <!ELEMENT?SwordLibrary?(Sword*)> <!ELEMENT?Sword?(SwordName,Price,Attack)> <!ELEMENT?SwordName?(#PCDATA)...
分类:编程语言   时间:2014-08-01 00:18:51    阅读次数:359
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