39. 6.49 (Pass-by-Value vs. Pass-by-Reference) Write a complete C++ program with the two alternate functions specified below, each of which simply triples the variable count defined in main. Then compare and contrast the two approaches. These two functions are A. function tripleByValue that passes a copy of count by value, triples the copy and returns the new value and B. function tripleByReference that passes count by reference via a reference parameter and triples the original value of count through its alias (i.e., the
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- Python 3.7.4 Given that add, a function that expects two int parameters and returns their sum, and given that two variables, euro_sales and asia_sales, have already been defined: Write a statement that calls add to compute the sum of euro_sales and asia_sales and that associates this value with a variable named eurasia_sales.Write function LRU using C to do the following. a. Return type voidb. Empty parameter listc. Write a series of printf statements to display the algorithmname and the output headerd. Declare a one-dimensional array, data type integer, to store thepage requests (i.e., pageRequests) initialized to data set 4, 1,2, 4, 2, 5, 1, 3, 6 e. Declare a variable, data type integer, to store the page faults,initialize to 0 (i.e., pageFaults)f. Declare a one-dimensional array, data type integer, to store thememory frame a page is allocated to (i.e., allocation), size isparameter FRAMESg. Declare a variable, data type integer, to store number of pages(i.e., pages) initialized to the number of page requestsh. Declare a variable, data type integer, to store page hits (i.e.,counter)i. Declare a one-dimensional array, data type integer, to storewhen a page is allocated to (i.e., time), size is parameter 10j. Declare a variable, data type integer, to track page hits/misses(i.e., flag1)k. Declare a…4.19 C++ Write a program that takes in a line of text as input, and outputs that line of text in reverse. The program repeats, ending when the user enters "Done", "done", or "d" for the line of text. Ex: If the input is: Hello there Hey done then the output is: ereht olleH yeH
- 5.21 In Python: A year in the modern Gregorian Calendar consists of 365 days. In reality, the earth takes longer to rotate around the sun. To account for the difference in time, every 4 years, a leap year takes place. A leap year is when a year has 366 days: An extra day, February 29th. The requirements for a given year to be a leap year are: 1) The year must be divisible by 4 2) If the year is a century year (1700, 1800, etc.), the year must be evenly divisible by 400 Some example leap years are 1600, 1712, and 2016. Write a program that takes in a year and determines whether that year is a leap year. Ex: If the input is: 1712 the output is: 1712 is a leap year. Ex: If the input is: 1913 the output is: 1913 is not a leap year. Your program must define and call the following function. The function should return true if the input year is a leap year and false otherwise.def is_leap_year(user_year)8.15 (Displaying a Sentence with Its Words Reversed) Write a program that inputs a line of text, tokenizes the line with function strtok and outputs the tokens in reverse order. Solve the full question in c language without using pointersWrite function FIFO in C to do the following a. Return type voidb. Empty parameter listc. Write a series of printf statements to display the algorithmname and the output headerd. Declare a one-dimensional array, data type integer, to store thepage requests (i.e., pageRequests) initialized to data set 4 , 1,2, 4, 2, 5, 1, 3, 6 e. Declare a variable, data type integer, to store the page faults,initialize to 0 (i.e., pageFaults)f. Declare a one-dimensional array, data type integer, to store thememory frame a page is allocated to (i.e., allocation), size isparameter FRAMESg. Declare a variable, data type integer, to store page hits (i.e.,present)h. Declare a variable, data type integer, to store number of pages(i.e., pages) initialized to the number of page requestsi. Initialize the allocation array by calling function memset,passing argumentsi. Array allocationii. -1 (i.e., INVALID)iii. sizeof(allocation)j. Using a looping construct, iterate through the number of pagesi. Set…
- 1(a): Implement the following C function : concatenate the lowest byte of each of two integers. The output should have 0's in the two most significant bytes , followed by the least significant byte of the first then second argument . For example , concatLowBytes (0x12345678 , 0xaabbccdd) 0x000078dd . You may use hexidecimal constants of any size. You should not use binary notation , function calls , loops or conditional statements. Examples : concatLowBytes ( 0x00000011 , 0x00000022)=0x00001122 concatLowBytes (0x12345678 , 0xaabbccdd )= 0x000078dd int concatLowBytes (int x, int y){ }10.25 LAB: Quadratic formula Implement the quadratic_formula() function. The function takes 3 arguments, a, b, and c, and computes the two results of the quadratic formula: x1=−b+b2−4ac2a x2=−b−b2−4ac2a The quadratic_formula() function returns the tuple (x1, x2). Ex: When a = 1, b = -5, and c = 6, quadratic_formula() returns (3, 2). Code provided in main.py reads a single input line containing values for a, b, and c, separated by spaces. Each input is converted to a float and passed to the quadratic_formula() function. Ex: If the input is: 2 -3 -77 the output is: Solutions to 2x^2 + -3x + -77 = 0 x1 = 7 x2 = -5.50C++ 13.9.2 Pass by reference Define a function ScaleGrade() that takes two parameters: points: an integer, passed by value, for the student's score. grade: a char, passed by reference, for the student's letter grade. ScaleGrade() changes grade to A if the points are greater than or equal to 88 and less than or equal to 100, and grade is not A. Otherwise, grade is not changed. The function returns true if grade has changed, and returns false otherwise. Ex: If the input is 88 B, then the output is: Grade is A after curving. Using the following code #include <iostream>using namespace std; // insert code here int main() { int studentPoints; char studentGrade; bool isChanged; cin >> studentPoints; cin >> studentGrade; isChanged = ScaleGrade(studentPoints, studentGrade); if (isChanged) { cout << "Grade is " << studentGrade << " after curving." << endl; } else { cout << "Grade " << studentGrade…
- 7. using c++, If c is a character (e.g. char c = ‘a’), then (int) c is a number between 0 and 255 that represents its ascii value of that character (the ascii value of ‘a’ is 97. Appendix B contains the ascii character set; for example, (int) ‘a’ == 97. Write a function that accepts two characters, c1, and c2, determines whether (int) c1 is greater than (int) c2, and then returns the sum of the ascii values of all the characters between c1 and c2.6. using c++, Write a function that counts the number of times an integer t occurs in an array of integers.6.use c code to Develop a code that gets two integers from the user and calculates and prints their least common multiplier or LCM. LCM is the smallest number that divides both given integers. Example. lcm (10, 15) = 30, lcm (5,7) = 35 and lcm (12, 24) = 24Hint: we know that lcm(x,y) = xy/gcd(x,y) where gcd is the greatest common divisor (discussed in class). Develop a gcd function in your code, get the two numbers from the user, call your function to calculate their gcd and then use the formula above to calculate and display their lcm GOOD LUCK! Reference This is a list of function prototypes of the C library functions presented in class. You may use any of these functions in your solutions (unless the requirements explicitly indicate otherwise). As you have been provided the function prototypes, you are expected to use the functions correctly in your solutions. double atof(char *string); int atoi(char *string); long atol(char *string); int fclose(FILE *filePointer); char *fgets(char…