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The topics are as follows:The contents of the commodity document Products.txt are as follows:{' Mac ': 6500, ' quilt ': 100.0, ' Mobile ': 1.0, ' BMW ': 100}The contents of the user file User.txt are as follows:{' Dalei ': {' money ': "1003.0, ' role ': 2, ' Pass ': ' 123456 ', ' products ': [' mac ']}, ' xg ': {' money ': +, ' role ': 1, ' Pass ': ' 12 3456 ', ' products ': [' Mac ']}}The administrator can manipulate:1. Recharge the user, enter the user name, modify the money,1000002. Add Items

Topic: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).test instructions and analysis: give an array, representing the price of a stock in a certain day, to obtain the maximum profit. You can trade up to two times and cannot ho

Eventually:Important screen fitting tips for your ipad ,First add a contentview placeholder ,And only set the frame in the viewdidload method ,Because in the IPad , whether it's a horizontal or vertical screen , W is a narrow edge ,So , first add a contentview to the right side of the host controller ,And let it automatically scale with the main controller's width and height ,The view of the sub-controller can only be added to contentview , x 0 y 0 wide is Contentview bounds Code snippet:mainvi

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. Many transactions as (ie, buy one and sell one share of the stock multiple times) with the FO Llowing Restrictions: Engage in multiple transactions on the same time (ie, you must sell the stock before you buy again). After you sell your the stock, you cannot

Topic: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 could complete as many transactions as (ie, buy one and sell one share of the stock multiple times). However, engage in multiple transactions for the same time (ie, you must sell the stock before you buy again).ExercisesThe simple way is that once the next day's pr

At present, the market environment is complex and changeable, the case of cohabitation, especially attention. U disk is a very common use of storage equipment, but also very easy to damage the equipment, once damaged, repair, you may lose valuable data, so you buy how to choose, is a very headache. Next to talk about the purchase of U disk several principles. 　1: Volume with speed, how do we choose? This is a cliché of the problem, generally

best time to Buy and Sell Stock IISay 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 could complete as many transactions as (ie, buy one and sell one share of the stock multiple times). However, engage in multiple transactions for the same time (ie, you must sell the stock before you

.　　Sima Zhao shouted: "The real estate industry is a fart, and no one needs to pretend to be forced. You think I don't know that you hire people to buy these houses ."　　Zhuge Liang smiled lightly: "Look at it carefully ."　　Sima Zhao took a close look. the buyers and sellers signed contracts with the real estate agents, which were black and white. They were not fake and unknown. So he shouted, turned over and fell into the horse, and vomited blood for

Tags: des style blog color Io AR for SP Div Say you have an array for whichITh element is the price of a given stock on dayI. Design an algorithm to find the maximum profit. you may complete as your transactions as you like (ie, buy one and every one share of the stock multiple times ). however, you may not engage in multiple transactions at the same time (ie, you must wait the stock before you buy again ).

121. Best time to Buy and Sell StockSay 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.Example 1:Input: [7, 1, 5, 3, 6, 4]output:5max. difference = 6-1 = 5 (Not 7-1 = 6, as selling-price needs-be-larger than buying price)

Question 1: Buy Books A bookstore has introduced a set of books with a total of 3 volumes. Each volume is priced at 60 yuan. The bookstore has launched an activity to engage in promotions. The activity is as follows: If you purchase one of these volumes separately, you can enjoy a 9.5 discount. If you purchase two different volumes at the same time, you can get a discount. If you purchase three different volumes at the same time, you can get a 8.5 di

Tags: leetcode Best time to buy and buy stock I Only one operation: Minimum value that appears before the premin record is maintained The Code is as follows: Int maxprofit (vector Best time to buy and stock Stock II Unlimited operation: When ==> current price> purchase price, sell The Code is as follows: Int maxprofit (vector Best time to

The experiment of queue data structure: line up to buy food Time limit:1000ms Memory limit:65536k Topic Description NarrationThere are many people who buy rice at noon, canteen is really too crowded, buy a meal laborious, science and technology big Child is very clever, straight to the political pass supermarket, haha, indeed, political pass supermark

1 Public classSolution {2 Public intMaxprofit (int[] prices) {3 intLastbuy = 0, Lastsell = 0, buy = integer.min_value, sell = 0;4 for(inti = 0; i ) {5Lastbuy =buy;6buy = Math.max (Buy, Lastsell-prices[i]);7 8Lastsell =sell;9Sell = Math.max (Sell, Lastbuy +prices[i]);Ten } One returnsell; A } -}Lastsell = Sell

{BS Trading formula--b Point buy, s point sell, Red Holding, Green}var1:=sum (Max (Max (High-low,abs (High-ref (close,1)), ABS (Low-ref (close,1)), 25) ; Var2:=high-ref (high,1); Var3:=ref (low,1)-low; Var4:=sum (IF (var2>0 and var2>var3,var2,0), 25); Var5:=sum (IF (var3>0 and var3>var2,var3,0), 25); VAR6:=VAR4*100/VAR1; VAR7:=VAR5*100/VAR1; Var8:=ma (ABS (VAR7-VAR6)/(VAR7+VAR6) *100,15); Var9:= (Var8+ref (var8,15))/2; Buyy:=zig (3,10); Selll:=ma (buy

Test instructions: Given a sequence, the element I represents the price of this stock for the first day, asking how much money can be earned at the best time to buy and sell? Buy only once, and only 1 shares, assuming unlimited cost.Idea: To find a low-priced time to buy, at the highest price when the sale of profits will be the biggest. But time is not a conflic

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Best time to Buy and Sell Stock ITopic: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.Ideas:Just find the maximum difference, max (prices[j]–prices[i]), I /** * @param {number[]} prices * @return {number}*/varMaxprofi

How to buy 100 chickens with 100 bucks? Known Rooster 5 pieces One, hen 3 pieces One, chick a piece of money 3 only:A For loop nesting is required, and by optimizing the code, you can speed up the operation.DOCTYPE HTML>HTMLLang= "en">Head> MetaCharSet= "UTF-8"> title>hundred dollars to buy hundred chickenstitle>Head>Body>P>How to buy 100 chickens with 100

Original title address: https://oj.leetcode.com/problems/best-time-to-buy-and-sell-stock-iii/Test instructionsSay 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).The idea of solving pro