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One: Topic requirementsBookstore for the "Harry Potter" series of books for promotional activities, a total of 5 volumes, with numbers 0, 1, 2, 3, 4, a single volume of 8 yuan, the specific discount is as follows: This number Discount 2 5% 3 10% 4 20% 5 25% Depending on the number of volumes purchased and this number, different discount rules will be applicable. The singular book only

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 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).code : OJ Test via runtime:71 ms1 classSolution:2

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There is a big difference between a car and a car. A good car is a quantitative change. If it is just a scooter, it is not cost-effective to purchase a car than to rent a bicycle or electric car on a subway bus. However, if there is a car or no car, it is a qualitative change in quality of life and the action radius increases, the changing lifestyle; this feeling cannot be measured by comparing traffic expenditures. Try not to buy a car by mortga

---to buy statistics query--Buy new-day tripsSelect COUNT (*) from (SELECT distinct UserID from hur_product_buy where createdate between ' 2016-07-12 00:00:00 ' and ' 2016- 07-12 23:59:59 ') as a--Buy new-total number of visitorsUNION ALL Select COUNT (*) from (SELECT distinct UserID from hur_product_buy where createdate between ' 1980-01-01 ' and ' 2016 -07-12 2

ISuppose there is an array, the first element of which is the price of a given stock in the first day. If you are allowed to complete only one transaction at most (for example, buying and selling a stock), design an algorithm to find out the maximum profit.IiSuppose there is an array, the first element of which is the price of a given stock in the first day. Design an algorithm to find the maximum profit. You can do as many trades as possible (buy and

Question: A stock price sequence, known at each point in time, to ask when to buy and sell the most profit? Time complexity O (n).Suppose the stock price is placed in an array in chronological order, assuming that the stock price rises and falls, that is, the stock price sequence is not diminishing. Buy and sell points need to be recorded (in lieu of array subscripts).(1) The maximum profit value is initial

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 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). /p> This topic allows us to make multiple transaction

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Buy the SouvenirsTime limit:10000/1000 MS (java/others) Memory limit:32768/32768 K (java/others)Total submission (s): 1662 Accepted Submission (s): 611Problem Descriptionwhen The winter holiday comes, a lot of people'll has a trip. Generally, there is a lot of souvenirs to sell, and sometimes the travelers would buy some ones with pleasure. Not only can they give the souvenirs to their friends and families

http://acm.hdu.edu.cn/showproblem.php?pid=2126Buy The SouvenirsTime limit:10000/1000 MS (java/others) Memory limit:32768/32768 K (java/others)Total submission (s): 1904 Accepted Submission (s): 711problem Descriptionwhen The winter holiday comes, a lot of people would have a-trip. Generally, there is a lot of souvenirs to sell, and sometimes the travelers would buy some ones with pleasure. Not only can they give the souvenirs to their friends and fa

One: Leetcode 121 best time to Buy and Sell StockTopic: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.Links: https://leetcode.com/problems/best-time-to-buy-and-sell-stock/A

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Title DescriptionGiven an array, the first element of it is the price of the first day of a given stock.Design an algorithm to calculate the maximum profit you can get. You can do as many trades as possible (buy and sell a stock).Note: You cannot participate in multiple transactions at the same time (you must sell the prior stock before buying again).Example 1:Input: [7,1,5,3,6,4] Output: 7 explanation: Buy