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Here we should all be beginners, amateur taping, so let me first declare that the hardware I recommend is also for this application level, Want to do very professional please visit some of the professional audio application site, here is not a very professional recommendation introduced. Recommended first is the microphone, microphone generally according to the principle of operation is divided into moving coil and capacitance microphone, you have to remember that the dynamic coil microphone s

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

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