Consider the following function that is intended to swap the values of two integers: int main () int x = 3; int y = 4; false_swapl (x, y); cout <« x « " « y « endl; return 0; void false_swap1(int& a, int& b) a = b; b = a; Why doesn't the function swap the contents of x and y? How can you rewrite the function to work correctly? TTTT Al3 (12pt) Paragraph: Arial

Consider the following function that is intended to swap the values of two integers: int main () int x = 3; int y = 4; false_swapl (x, y); cout <« x « " « y « endl; return 0; void false_swap1(int& a, int& b) a = b; b = a; Why doesn't the function swap the contents of x and y? How can you rewrite the function to work correctly? TTTT Al3 (12pt) Paragraph: Arial

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question 3The program below reads two integers. Then a function with the followingprototype is called: void div_rem(int a, int b, int *divides, int *remains); This function is passed the two integers. It divides them (using integer division),and writes the answer over wherever “divides” points. Then it finds theremainder and writes it into where “remains” points. Thus for 20 and 3, 20divided by 3 is 6, remainder 2. Implement the div_rem function. #include <stdio.h>void div_rem(int a, int b, int *divides, int *remains); int main(void) { int a, b; int div = 0; int rem = 0; printf("enter two integers ");scanf("%i %i", &a, &b); div_rem(a, b, &div, &rem); printf("%i divided by %i = %i " "remainder %i\n", a, b, div, rem); return 0;}
1 - Nuclear Power Plant (python) The nuclear powerplant at Threeyedfish will automatically run a program to print a warning message when the reactor core becomes unstable. The warning message reads: NUCLEAR CORE UNSTABLE!!! Quarantine is in effect. Surrounding hamlets will be evacuated. Anti-radiationsuits and iodine pills are mandatory. Since the message contains crucial information, it should be printed three times. To do this, write a function that prints this message. This function has to be used three times.
please typed Let the function fun be defined as: int fun(int* k) { *k += 6; return 4 * (*k); } Suppose fun is used in a program as follows: void main() { int i = 10, j = 20, sum1, sum2; sum1 = (i / 2) + fun(&i); sum2 = fun(&j) + (j / 2); } Question: What are the values of sum1 and sum2 if a) operands in the expressions are evaluated left to right? b) operands in the expressions are evaluated right to left?
Write a void function "summax" that asks the user to enter positive number until a negative number is entered. The function will use two referance parameters called "sum" and "max" to return the sum of all the positive numbers and the biggest number entered.
The food pantry provides its volunteers with keys to unlock doors and a Food Pantry vest to let customers know they work there. There are a limited amount of keys and vests, so volunteers need to check them out of the office.Complete the program by creating a CheckoutEquipment function that takes in the number of keys and vests currently available at the office. If there are enough keys and vests, the function should reduce the number of keys and vests by 1 and return true. Otherwise, the number of keys and vests will stay the same, and the function will return false. Take note that the number of keys and vests will be defined in the main function and the CheckoutEquipment function should modify the values of those variables declared in main. #include <iostream> int main() { int keys = 10; int vests = 10; bool checked_out = CheckoutEquipment(keys, vests); if (checked_out) { std::cout << "Successfully checked out.\n"; } else { std::cout << "Not…
Consider the following recursive function. What does it calculate in terms of x, y, and z? 01: Private Function CalcRecurse(ByVal x As Integer, ByVal y As Integer, ByVal z As Integer) As Integer 02: If x <= 1 Then 'Assume that CalcRecurse always starts with x > 1 03: Return y 04: Else 05: Return z + CalcRecurse(x - 1, y, z) 06: End If 07: End Function
This is the code I have so far: #include <iostream> #include<cmath> //for round function using namespace std; void calculatePizza(int noOfGuests); void calculatePizza(int noOfGuests){ //Declare the costs of each sized pizza double largeCost=14.68,mediumCost=11.48,smallCost=7.28,guests=noOfGuests; //number of large count pizzas int largeCount=noOfGuests/7; noOfGuests%=7; //number of medium count pizzas int mediumCount=noOfGuests/3; noOfGuests%=3; //number of smallcount pizas int smallCount=noOfGuests; //Find the cost of pizzas double cost=largeCount*largeCost+mediumCount*mediumCost+smallCost*smallCount; //Assuming the size of large size pizza is 30 , medium size pizza is 20 small size pizza is 10 sqinches double size=largeCount*20+mediumCount*16+smallCount*12; cout<<largeCount<<" large pizzas, "<<mediumCount<<" medium pizzas, "<<"and "<<smallCount<<" small pizzas will be…
Functions With Parameters and No Return Values Quiz by CodeChum Admin Create a program that accepts an integer N, and pass it to the function generatePattern. generatePattern() function which has the following description: Return type - void Parameter - integer n This function prints a right triangular pattern of letter 'T' based on the value of n. The top of the triangle starts with 1 and increments by one down on the next line until the integer n. For each row of in printing the right triangle, print "T" for n times. In the main function, call the generatePattern() function. Input 1. One line containing an integer Output Enter·N:·4 T TT TTT TTTT
In Programming Exercise 13 (Chapter 8), you are asked to write a program to calculate students’ average test scores and their grades. Improve this programming exercise by adding a function to sort students’ names so that students’ data is output into ascending order according to their name. (data.txt) Johnson 85 83 77 91 76 Cooper 78 81 11 90 73 Gupta 92 83 30 69 87 Blair 23 45 96 38 59 Clark 60 85 45 39 67 Kennedy 77 31 52 74 83 Bronson 93 94 89 77 97 Sunny 79 85 28 93 82 Smith 85 72 49 75 63 Aniston 80 90 95 93 48 (Program to Improve) #include <iostream> #include <fstream> #include <string> #include <iomanip> using namespace std; void getData(ifstream& inf, string n[], double tstData[][6], int count); void calculateAverage(double tstData[][6], int count); void calculateGrade(double tstData[][6], char gr[], int count); void print(string n[], double tstData[][6], char gr[], int count); int main() { string names[10]; double…
The Problem: Lots of functions return a pointer when returning a goodvalue and NULL on error. We a quick way of testing for NULL.
For this c++ hw 1) Make a function that reads in 2 integers from the user. (call it Get2Ints) 2) Make a function that swaps 2 integers (call it swap) 3) Make a function swapAndMult that takes two ints as parameters, and one more int parameter which will be a multiplier swapAndMult should take the two parameters and multiply them by the multiplier. The parameters should return from the function with new values. swapAndMult should NOT print out the values. 4) Make a function that prints 2 integers. Call it Print2Ints Main function should: a) declare two integers and a multiplier b) read 2 integers from the user (use your function) c) print the values of the integers (use the function) d) swap the integers e) print the values of the integers f) read an additional integer (the multplier) from the user g) print the multiplier from the user (sometimes called 'echoing the input') h) call swapAndMult i) print the values of the integers
Write a function named midvalue that is passed three unique int values and returns the one that is in the middle. Thus, midvalue(5,28,14) returns 14. C++