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Best Time to Buy and Sell Stock II
Say you have an array for which theithelement is the price of a given stock on dayi.Design an algorithm to find the maximum profit. You may complete a...
分类:其他好文   时间:2015-03-06 18:53:01    阅读次数:107
sax解析并封装XML到bean
JAVA就业培训教材 张孝祥 39.00 SaxJDK7.0全解 哈哈 90.00 package XML及其操作; public class Book { private String name; private String author; private String price; public String getName() { return...
分类:其他好文   时间:2015-03-06 16:02:46    阅读次数:116
Best Time to Buy and Sell Stock
Say you have an array for which theithelement is the price of a given stock on dayi.If you were only permitted to complete at most one transaction (ie...
分类:其他好文   时间:2015-03-05 16:30:37    阅读次数:126
数据库(子查询)
where parent_id=0select shop_price from`kangarooisland_database`.`ki_goods`where cat_id in( select cat_id from`kangarooisland_database`.`ki_category` ...
分类:数据库   时间:2015-03-05 16:14:16    阅读次数:130
hdu I NEED A OFFER!
这道题是道很基本的0/1背包的问题,为了使解题很简单一点,可以将题目中要求的最大概率转换成不能录取的最小概率,这样1-dp[n]即为至少有一个offer的最大概率。状态方程为:dp[j]=min{dp[j],dp[j-price[i]]*chance[i]}; 1 #include"iostream...
分类:其他好文   时间:2015-03-04 22:23:59    阅读次数:158
POST 方式表单提交
u = "http://www.rateinflation.com/consumer-price-index/usa-historical-cpi"页面有三个form一个from一个to,还有一个提交按钮forms = getHTMLFormDescription(u)[[1]]HTML Form:...
分类:其他好文   时间:2015-03-04 21:01:57    阅读次数:167
Best Time to Buy and Sell Stock III
Say you have an array for which the ith element is the price of a given stock on day i. Design an algorithm to find the maximum profit. You may complete at most two transactions. 解题思路:要求两次交易的最大利润....
分类:其他好文   时间:2015-03-04 17:04:16    阅读次数:157
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 (ie, buy one and sell one share of the stock),...
分类:其他好文   时间:2015-03-04 11:10:01    阅读次数:125
Best Time to Buy and Sell Stock II
Best Time to Buy and Sell Stock II问题:Say you have an array for which theithelement is the price of a given stock on dayi.Design an algorithm to find t...
分类:其他好文   时间:2015-03-04 10:59:41    阅读次数:114
hdu 饭卡
本题的思路是:首先如果m5,则先拿出5元钱买最贵的东西,这样背包容量就变成了m-5,商品数量为n-1的0/1背包问题。此题的状态转移方程为:dp[j]=max{dp[j],dp[j-price[i]]+price[i]},dp[j]表示买前i件商品,预算为j时的最大花销。 1 #include"io...
分类:其他好文   时间:2015-03-03 22:04:46    阅读次数:170
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