Chapter 6.13, Problem 6.23CP

The following program asks the user to enter two numbers. What is the output of the program if the user enters 12 and 14?

#include <iostream>

using namespace std;

void func1(int &, int &);

void func2(int &, int &, int &);

void func3(int, int, int);

int main()

{

int x = 0, y = 0, z = 0;

cout ≪ x ≪ " " ≪ y ≪ " " ≪ z ≪ endl;

func1(x, y);

cout ≪ x ≪ " " ≪ y ≪ " " ≪ z ≪ endl;

func2(x, y, z);

cout ≪ x ≪ " " ≪ y ≪ " " ≪ z ≪ endl;

func3(x, y, z);

cout ≪ x ≪ " " ≪ y ≪ " " ≪ z ≪ endl;

return 0;

}

void fund (int &a, int &b)

{

cout ≪ "Enter two numbers: ";

cin ≫ a ≫ b;

}

void func2(int &a, int &b, int &c)

{

b++;

c−−;

a = b + c;

}

void func3(int a, int b, int c)

{

a = b − c;

}