datacamp discount

Hit the course with the code: actually there are a lot of pits, and then studySupermarket Category: classSuppermarket {//Create a Warehouse objectCangku ck =NewCangku (); PublicSuppermarket () {ck. Jinpros ("Acer", +); Ck. Jinpros ("SamSung", +); Ck. Jinpros ("jiangyou", +); Ck. Jinpros ("Banana", +); } /// ///the process of interacting with the user/// Public voidaskbuying () {Console.WriteLine ("Welcome, may I ask what you need? "); Console.WriteLine ("we have Acer,

The reciprocal of expected sort based on hierarchical correlationSummaryMany of the indicators for evaluating the results of information retrieval can be used in binary correlation situations, and there is only one indicator that can usually be used for hierarchical correlation, namely, the cumulative gain (DCG) of the discount. One drawback of this indicator is its added nature and potential independence hypothesis: the document at a given location a

Python uses the first-class function to implement the design mode, and the python Design Mode Case study: Restructuring the "Policy" Model Some design patterns can be simplified if the functions used as first-class objects are reasonably used, and the "Policy" pattern is a good example. Classic "policy" Mode UML class diagram for processing order discounts in "policy" Design Mode The e-commerce industry has a feature that can obviously use the "Policy" model, that is, calculate the

Topic:Bookstore 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:Discount on this number2 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 corresponds to one

the enterprise's expected profitability and the appropriate discount rate. This method evaluates different individual assets within an enterprise as a unified and inseparable element. It is not a simple sum of individual assets, however, the capitalization price under the normal operating conditions of an enterprise reflects the future profitability of the enterprise's assets as a whole, and reveals the internal value of the enterprise. Therefore, th

. In order to make it easier to discount the cash flow of the product to the age of 30, the income is uncertain due to the dividend of the person who receives the product, and the product dividend is assumed to be zero. Model Creation: 1. Set the discount interest rate (the ROI of insurance companies) to R; 2. the warranty period is from X: 30 ~ 100 years old; 3. The current INPV (x, R) and INPV (x, R) of t

. Java Package COM. observer1; public class customerone implements observer {subject; string goodsname, personname; Public customerone (subject, string personname) {This. personname = personname; this. subject = subject; subject. addobserver (this);} public void Update () {If (subject instanceof shopsubject) {goodsname = (shopsubject) subject ). getgoodsname (); system. out. println (personname + "interested only in the name of the discounted product:"); system. out. println ("the name of the

I. Problems There are a total of five flags in the "Harry Potter" series. Assume that each volume is sold separately for 8 euros. If you purchase two different volumes at a time, you can deduct 5% of the fee, and the three volumes are more. Assume that the discount is as follows: 2 discount 5% 3 discounts: 10% 4 discounts: 20% 5 discounts: 25% There is a certain demand for books, but different discounts can

always try to use it whenever possible.Extract Method(110) to explain the meaning of a piece of code. after all, a temporary variable is meaningful only in the function where it is located, and has many limitations. A function can be useful throughout the entire life of an object and can be used by other objects. but sometimes, when a local variable causesExtract Method(110) when it is difficult, I will useIntroduceExplaining variable(124 ). Practice 1. Declare a final temporary variable and as

, you can separate these code segments into a function. Let's take a look at the following code: Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->#region Get Customerpublic void GetCustomer(){// code to get the customer}#endregion#region Save Customerpublic void SaveCustomer(){// code to save the customer}#endregion After it is folded, it becomes as follows: Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlig

. Method (1) declare a temporary final variable and assign the calculation result of some actions in the complex expression to it. (2) Replace the "operation result" part of the expression with the temporary variable. (If this part is repeated in the code, you can replace it one by one.) (3) Compile and test. (4) Repeat the above process to process other similar parts. In this example, we start with a simple calculation: // Double price () {// price = basePrice-quantity

1438. Shopaholic ConstraintsTime limit:1 secs, Memory limit:32 MBDescriptionLindsay is a shopaholic. Whenever there is a discount of the kind where can buy three items and only pay for both, she goes completely mad and F Eels a need to buy all items in the store. You had given up on curing she disease, but the try to limit it effect on her wallet. You have realized, the stores coming with these offers is quite selective when it comes to which item

of the operation of a part of the complex expression to be decomposed. (2) Replace the part of "Operation result" in the expression with the temporary variable above. (If this part of the substitution is repeated in the code, it can be replaced one at a time)(3) compile, test. (4) Repeat the above process to deal with other similar parts. Examplelet's start with a simple calculation:Before refactoring double price () {//prices = Baseprice-quantity Discount