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- Step 1. Complete the following program and record the results. #include <iostream> using namespace std; void rect_area(float, float, float); int main() { float width = 2.5, height = 3.1, area = 0.0; ___________________________ //filling by calling rect_area() method cout << "The area in main is " << area << endl; return 0; } void rect_area(float width, float height, float area) { area = width * height; cout << "The area in the function is " << area << endl; }Question 1 is already done need help with the others though This is the C code I have so far #include <stdio.h> #include <stdlib.h> struct employees { char name[20]; int ssn[9]; int yearBorn, salary; }; struct employees **emps = new employees()[10]; //Added new statement ---- bartleby // function to read the employee data from the user void readEmployee(struct employees *emp) { printf("Enter name: "); gets(emp->name); printf("Enter ssn: "); for(int i =0; i <9; i++) scanf("%d", &emp->ssn[i]); printf("Enter birth year: "); scanf("%d", &emp->yearBorn); printf("Enter salary: "); scanf("%d", &emp->salary); } // function to create a pointer of employee type struct employees *createEmployee() { // creating the pointer struct employees *emp = malloc(sizeof(struct employees)); // function to read the data readEmployee(emp); // returning the data return emp; } // function to…Mark the following statements as true or false: a. To use a predefined function in a program, you need to know only the name of the function and how to use it. (1) b. A value-returning function returns only one value. (2, 3) c. Parameters allow you to use different values each time the function is called. (2, 7, 9) d. When a return statement executes in a user-defined function, the function immediately exits. (3, 4) e. A value-returning function returns only integer values. (4) f. A variable name cannot be passed to a value parameter. (3, 6) g. If a C++ function does not use parameters, parentheses around the empty parameter list are still required. (2, 3, 6) h. In C + + , the names of the corresponding formal and actual parameters must be the same. (3, 4, 6) i. A function that changes the value of a reference parameter also changes the value of the actual parameter. (7) j. Whenever the value of a reference parameter changes, the value of the actual parameter changes. (7) k. In C++, function definitions can be nested; that is, the definition of one function can be enclosed in the body of another function. (9) l. Using global variables in a program is a better programming style than using local variables, because extra variables can be avoided. (10) m. In a program, global constants are as dangerous as global variables. (10) n. The memory for a static variable remains allocated between function calls. (11)
- 6.10 LAB: Driving costs - functions Driving is expensive. Write a program with a car's miles/gallon and gas dollars/gallon (both floats) as input, and output the gas cost for 10 miles, 50 miles, and 400 miles. Output each floating-point value with two digits after the decimal point, which can be achieved as follows:print('%0.2f' % your_value) Ex: If the input is: 20.0 3.1599 the output is: 1.58 7.90 63.20 Your program must define and call the following driving_cost() function. Given input parameters driven_miles, miles_per_gallon, and dollars_per_gallon, the function returns the dollar cost to drive those miles. Ex: If the function is called with: 50 20.0 3.1599 the function returns: 7.89975 def driving_cost(driven_miles, miles_per_gallon, dollars_per_gallon) Your program should call the function three times to determine the gas cost for 10 miles, 50 miles, and 400 miles. Note: This is a lab from a previous chapter that now requires the use of a function.6. Write an assignment statement that might be used to implement the equation below: (use the pow(a,b) function) y = 4x⁴+ 2x² + 1Examine the following function header, and then write a statement that calls the function, passing 12 as an argument.def show_value(quantity):
- 6.20 LAB: Driving costs - functions Driving is expensive. Write a program with a car's miles/gallon and gas dollars/gallon (both floats) as input, and output the gas cost for 10 miles, 50 miles, and 400 miles. Output each floating-point value with two digits after the decimal point, which can be achieved as follows:print('{:.2f}'.format(your_value)) Ex: If the input is: 20.0 3.1599 the output is: 1.58 7.90 63.20 Your program must define and call the following driving_cost() function. Given input parameters driven_miles, miles_per_gallon, and dollars_per_gallon, the function returns the dollar cost to drive those miles. Ex: If the function is called with: 50 20.0 3.1599 the function returns: 7.89975 def driving_cost(driven_miles, miles_per_gallon, dollars_per_gallon) Your program should call the function three times to determine the gas cost for 10 miles, 50 miles, and 400 miles. I need help with this. Use Python, please.C++ programming question: Suppose we have just discovered an alien planet (we will call it Mars), and on this planet one year is divided into 15 months and each month consists of 30 days. i. Write the code for a struct charontime to hold years, months, and days for time on Charon -all ints. ii. Write a function that takes an int parameter that represents the number of Charon days, converts it to years, months, and days on Charon and returns this information in a struct charontime. So for example it will convert 800 days into a struct that represents 1 year, 11 months, and 20 days. iii. Write a function that takes a struct charontime parameter and returns the total number of Charon days represented by the struct. iv. Write a function that takes a filename and an array of struct charontime, opens the file, reads each line as the number of Charon days, converts this to a struct charontime and stores this in the array. (you don't need to create an actual file with number of days in it...…C++ programming question: Suppose we have just discovered an alien planet (we will call it Mars), and on this planet one year is divided into 15 months and each month consists of 30 days. i. Write the code for a struct charontime to hold years, months, and days for time on Charon -all ints. ii. Write a function that takes an int parameter that represents the number of Charon days, converts it to years, months, and days on Charon and returns this information in a struct charontime. So for example it will convert 800 days into a struct that represents 1 year, 11 months, and 20 days. iii. Write a function that takes a struct charontime parameter and returns the total number of Charon days represented by the struct. iv. write a function to sort an array in descending order based on the number of charon days. write a comparison and swap function you will use
- **PLEASE READ THE WHOLE QUESTION!!"" Write a python, program that prints a pyramid made of letters in the middle of the screen. Use functions with parameters for this assignment. The base width of the pyramid is determined by a character the user enters. If the user enters the letter o, the following pyramid will be printed. It can be assumed that the screen width is 80 characters. The following assignments make use of functions with return values ("fruitful functions"). So if the user enters the letter o it will print the ******The input is not always o, the input o is just an example, so the user can enter also a letter like u or w or something else******** **nBesides that the code may not have the charArray = 'abcdefghijklmnopqrstuvwxyz', but it needs to have the range code like (range(97,123)) or something else **int num1, num2, num3; double length, width, height; double volume; num1 = 6; num2 = 7; num3 = 4; length = 6.2; width = 2.3; height = 3.4and the function prototype: double box(double, double, double);Which of the following statements are valid? If they are invalid, explain why.a. volume = box(length, width, height);2.) Call backs (True or False): A.) Your program has three functions defined: void a(), void b(), and void c(), followed by your main() function. Your main() function is allowed to call a(), b(), and c(). (True/False) B.) Your program has three functions defined: void a(), void b(), and void c(), followed by your main() function. Your main() function is allowed to call c() but cannot call a() or b(). (True/False)
