Define each of the following: a) A function that maps from a set with 3 items to a set with 4 items b) A function that maps from a set with 4 items to a set with 3 items that is onto. c) A function that maps from a set with 4 items to a set with 3 items that is not onto.
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Define each of the following:
a) A function that maps from a set with 3 items to a set with 4 items
b) A function that maps from a set with 4 items to a set with 3 items that is onto.
c) A function that maps from a set with 4 items to a set with 3 items that is not onto.
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- A variable defined inside a function has local significance only. A variable definedexternal to a function is global and may be read but not modified by a function, itshould be declared global in the function to be modified. Arguments passed to afunction may be in arbitrary order when the name of the parameter is specified uponcalling the function. These concepts are illustrate the code where thenumber of occurrences of a letter in a word is counted and returned along with anincremented value of an input variable.4. Write a function named “removeNegativePrice” that accepts the vector of pointers to PurchaseOrder objects. It will go through that list and remove all PurchaseOrder objects with the negative cost per item. It will also return how many PurchaseOrderobjects that it has removed from the list. Please show how this function is being called and can delete PurchaseOrder objects with negative cost from the list. C++4.Explain what the remove() algorithm does and what you have to do to actually remove the specified elements from the container. 5.Explain how function templates let you create functions that accept a variety of data types. 6.Describe how function objects work and the advantage of using them over using a standard function. 7.Explain what a lambda expression is and when you might use one.
- Give an example of how calling an inline function differs from calling a background function and explain why?1. Write a function that converts a phrase into pig Latin. A word is convertedto pig Latin by removing the first character of the word, placing it at theback of the word, and adding the characters “ay” to the word. For example,“hello world” in pig Latin is “ellohay orldway.” Your function can assumethat each word consists of at least two letters and that each word is separatedby one space, with no punctuation marks.2. Write a function that counts the occurrences of a word in a string. Thefunction should return an integer. Do not assume that just one space separates words and a string can contain punctuation. Write the function sothat it works with either a String argument or a StringBuilder object.3. Write a function that takes a number, such as 52, and returns the numberas a word, as in fifty-two.4. Write a subroutine that takes a simple sentence in noun-verb-object formand parses the sentence into its different parts. For example, the sentence“Mary walked the dog” is parsed into…Define the function print_trophic_class_summary(tli3_values) that accepts a list of trophic level index values and prints a summary outlining the number of lakes in each trophic classification, in order from highest trophic classification to lowest. See the examples for the required format. Notes: Your function must print the summary, not return it. In each state line, the initial number should be formatted with width 3. (Hint: :3 will be helpful) All possible states must be included in the output, even states with zero lakes. The following list will be helpful: ['Hypertrophic', 'Supertrophic', 'Eutrophic', 'Mesotrophic', 'Oligotrophic', 'Microtrophic', 'Ultra-microtrophic'] You must include and use one of your number_in_trophic_class functions (take your pick!), plus your trophic_class function. Basically, you can start with your answer to Question 5 or 6 and add your print_trophic_class_summary function definition after your previous definitions. For example: Test Result…
- Solve the problem in C++ (Geometry: find the bounding rectangle) A bounding rectangle is the minimum rectangle that encloses a set of points in a two-dimensional plane, as shown in Figure 11.9d. Write a function that returns a bounding rectangle for a set of points in a two-dimensional plane, as follows: const int SIZE = 2; Rectangle2D getRectangle(const double points[][SIZE]); Write another function that returns a pointer to the bounding rectangle as follows: Rectangle2D* getRectanglePointer(const double points[][SIZE]); The Rectangle2D class is defined in Programming Exercise 11.9. Write a test program that prompts the user to enter five points and displays the bounding rectangle’s center, width, and height. Sample Run Enter five points: 1.0 2.5 3 4 5 6 7 8 9 10 The bounding rectangle’s center (5.0, 6.25), width 8.0, height 7.5In this part your will have questions about C++ functions with pointers. • Write a function that takes three integer pointer as parameters and calculates sum of all numbers. This function must return the result as a pointer. • Declare a structure about a book which has properties such as name and price etc. Then create a list of book with 5 books. After that define a function that takes this book-list as a pointer and print out list items. • Write a function that calculates total price of the book in the book list (note: take the book-list as a pointer again). Write all function prototypes and test all functions within a single main functions.Explain how the background process of calling inline functions varies from that of a regular function by giving an example of how it is different.
- 3. Write the appropriate function definition for each of the following situations:a) Write a function that separately sums the even indexed elements and old indexed elements of an array of doubles. Each element of the array contributes to one of the two sums, depending on whether the index of the element is even or odd. Your function definition must have a heading like this:void sum(double b[ ]){ int n;double *sum_even;double *sum_odd;::}Give an example of how calling an inline function is different from calling a normal function in the background, and explain how the difference came to be. Also, give a specific example of how the change came about.Question 1: Evaluating expressions with respect to a variable valuation. The function simplify above can perform all numerical computations, but stops whenever it encounters a variable. It cannot do any better, in fact, because it does not know the values of variables. If we specify values for variables, we can then use those values in the computation, replacing each variable whose value is specified with the value itself. A variable valuation is a mapping from variables to their values; we can represent it simply as a dictionary associating to each variable a number: varval = {'x': 3, 'y': 8} You can extend the evaluation function to take as input a variable valuation. The idea is that, when you find a variable, you try to see whether its value is specified in the variable valuation. If it is, you can replace the variable with the value, and carry on. If it is not, you leave the variable as it is, since you cannot evaluate it. To check if a variable (a string) s is…
