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Ideas :Say you has an array for which the i-th element is the price of a given-stock on day I.If you were-permitted-to-complete at most one transaction (ie, buy one and sell one share of the stock), design an AL Gorithm to find the maximum profit.code : OJ Test code runtime:111 ms1 classSolution:2 #@param prices, a list of integers3 #@return An integer4 defMaxprofit (Self, prices):5 #Non

Say you has an array for which the i-th element is the price of a given-stock on day I.Design an algorithm to find the maximum profit. You are in most of the transactions.Note:Engage in multiple transactions on the same time (ie, you must sell the stock before you buy again).Problem Solving Ideas:Since it is a two-time deal, it is divided into two areas. First, according to the idea of a transaction to cal

Before using Sina's stock data, because Sina Http/javascript lacks some data, uses the chrome own development tool to monitor the Teng Xun financial HTTP information, obtains the following method to obtain the stock data. Take Wuliangye as an example, to get the latest quotes, access the data interface: [HTML] http://qt.gtimg.cn/q=sz000858 return data: [HTML] v_sz000858= "51~ Wuliangye ~000858~27.78~27.60~

Say you has an array for which the i-th element is the price of a given-stock on day I.Design an algorithm to find the maximum profit. Transactions at the most K .Note:Engage in multiple transactions on the same time (ie, you must sell the stock before you buy again).Credits:Special thanks to @Freezen for adding this problem and creating all test cases.Based on Dynamic PlanningMaintain II vectors:gpro:to Da

title :Say you has an array for which the i-th element is the price of a given-stock on day I.Design an algorithm to find the maximum profit. You are in most of the transactions.Note:Engage in multiple transactions on the same time (ie, you must sell the stock before you buy again).Code : runtime:175 ms1 classSolution:2 #@param prices, a list of integers3 #@return An integer4 defmaxprofit_with_

R get Stock dataSeveral pkg in R provide the online download of stock data Essentials, if you have to find a better, then quantmod well-deserved! For example, to download the market data in Shanghai, the code can be:library(quantmod)SSE head(SSE)possible:library(quantmod)setSymbolLookup(SSE=list(name="000001.SS", src="yahoo"))getSymbols("SSE")head(SSE)These are the essentials recommended by Jeff Ryan (Quant

Now in the hand is a securities information type of app, which involves the stock market interface, the market has chart and so on, see a lot of people on the Internet to seek this information, so I specially wrote a demo here to share with you. Here's how it works: The background map is the use of canvas first draw a rectangle, and then draw a few dotted lines, the EMA is drawn through the path, in short the drawing is very simple, I do not intro

The February 29 News reported that South Korea's only stock exchange, the Korean Exchange (KRX), will create an over-the-counter (OTC) platform using block-chain technology. The trading system developed by the Korean Exchange, which uses the underlying bitcoin and other digital currency codes, is at an early stage of development, The Korea Times reported. The exchange's representative told the media that the platform could help its OTC traders reduce

Sina's financial channel has always felt good. But because of the recent slow speed, the Web page is always open when viewing stock information. have been studying Ajax for several days, so I made a page with jquery to automatically read real-time data on Sina stock. Accustomed to using prototype, replace the script part of the code. Copy code code as follows: Of course, the page par

Problem-solving ideas: Record two states: 1, currently, there is a stock when the maximum yield Havstock = max (Havstock, Nonstock-prices[i]) 2, currently, no stock when the maximum yield nonstock = max (nonstock, hav Stock + prices[i]) State transfer formula is listed above. Class Solution {public : int Maxprofit (vector

The third of Technology and economics: about the stock marketEquity is the basic concept of doing business, and not only listed companies can calculate shares. For example, a restaurant is a partner for retaining a competent chef, and a fast-retiring restaurant owner transfers a stake to a successor.Partnership management should be encouraged, and partnership is a postgraduate examination of credit and cooperation ability. Partners must communicate op

Look at THE plate(a) How to see the market on the day of the index to receive yin, Yang　　Investors look at the market every day, but most people don't see the market. The market is the day to accept Yin, or the sun? I pass a long time record, verification, found that the market in the normal time, Yin, Yang is a regular. The accuracy of my judgment is up to 78.2%.　　The market to accept Yin, or the sun, directly related to the day's trading stocks. If the market to accept Yin, you buy the

Some people say that the stock market is a money-making "tool", but if you do not grasp a certain operating skills, not only make money, but will lose. Here are six ways to make a profit.Method One: Short-term profit methodThe short-term profit method is the investment technique that buys a lot when a stock rises, and then sells it in a short period of time to a considerable height.Short-term profit strateg

Original Address:Introduction to the stock indexPeach Silk1, the operation of Bdzx Star command is clear.PAV Chip GravityThe 1.PAV Upper Rail (GV) and Lower Rail (CV) vibrate within 0 to 100 and 100 to 0 respectively;2.pav-diff at a high level of large shocks indicate the main position suction;3.pav-diff in the low holding constant indicates the main earthquake bin washing disk;4.pav-diff from the low start to show the start of the big market launch;5

There is a warning in the stock market: the stock market is risky and you should be cautious when entering the market. That is to say, when people invest money in the stock market and want to make money by buying stocks, they have to bear relative risks. However, it is not skillful to make money in the stock market. Re

The following two methods can be used to obtain stock data: 1. Data retrieval through HTTP/JavaScript Interfaces 2. Web-Service Interface 1. Data retrieval through HTTP/JavaScript Interfaces 1.1sina stock data interface Take the Daqin Railway (stock code: 601006) as an example. To get its latest market, you only need to access Sina's

There are two ways to get the stock data now:1. Http/javascript Interface Fetch data2. Web-service interface1.http/javascript Interface Fetch Data 1.1Sina Stock Data InterfaceTake the Great Qin Railway (stock code: 601006) For example, if you want to get its latest market, just visit Sina's stock dataInterface: http://

2.3 How to Republicans in a stock(2010-04-05 09:04:45)The law of the stock market is a win and two flat seven losses, meaning that more than 70% of people will lose. How can retail investors stand up to the 10%-person group that makes a profit? In my opinion, in order to earn retail money and constantly study the psychology and behavior of individual retail investors, we may as well look at the psychology a

Warren Buffett in the face of the public, the first thing to do is to drink Coke to sell moe.1. The fund manager is too incompetent, and the data show that few fund managers can continue to surpass the index in performance. So choosing a fund is not as direct as buying an index.2. The index will save time and effort, do not have to stare at the stock at work. It is the most valuable investment that young people spend more time working hard to improve

2016/05/09 Append: corresponding QUANTMOD package related instructions reference http://www.quantmod.com/ The Quantmod package defaults to access to Yahoo Finance data, including SSE and Shenzhen stock data, as well as Hong Kong equities. The SSE code is SS, deep Proof code is SZ, Hong Kong stock code is HK such as Maotai: 6000519.SS, Vanke 000002.sz, Changjiang industrial 0001.hk Use the following command