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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

When I told my students about the backpack this morning, I saw a discussion about the number of backpacks in the backpack. At that time, I did not quite understand it, so I did not talk about it. As a result, I made such a question in the afternoon. There are n items, and passengers have m oceans. First, how many items can passengers buy at most? Please note that the number of items here is not the most valuable. Therefore, it is very easy to sort all

Today, I went to Xujiahui to buy a hard disk in the Pacific Ocean. Just like before, people inside the hard-drawn hard to meet customers and asked what you want to buy. They store a lot of mainboard boxes in a clear color. Everything you want to buy is useless. If you want to buy things from them, you can only wait for

Recently, on the internet a woman sold a set of real estate in Beijing, the use of cash funds in Houston to buy 6 homes in the news caused uproar. Chinese investors in the sigh of domestic prices are too high at the same time, have sprouted up overseas home buying the idea of the bottom buy house."News Review"Last year, Ms. Li, a native of Beijing, sold her only house, a two-bedroom old building in the Chao

1. Best time to Buy and Sell Stock ITopic linksTitle Requirements: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.The essence of this problem is to find out the maximum difference between any two numbers in an array (t

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Buy with Match Time limit: Ms Memory limit: 65536 KBNumber of submissions: 268 by number: 117 "Title description"Joe thought the clouds were beautiful and decided to go to the shops in the mountains to buy some clouds. There are n clouds in the store, the clouds are numbered as 1,2,......,n, and each cloud has a value. But the store owner told him that some clouds should be paired to

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 #None case or one element case6 ifPrices

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 calculate the maximum value of the transaction,

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 Day I the maximum profit lpro:to Day I, the max

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_k_transactions (self, prices, K):5Days =len (