Write a program with two functions: main and swap. The main function will read t

Question

Write a program with two functions: main and swap. The main function will read two integer numbers (the first read into a variable called x while the second read into a variable called y) and then calls the function swap that accepts the pointers to the two variables x and y respectively. The swap function should swap the value of the two variables. The main function should then print the values of the variables x and y.
Sample Run:
Enter the first number
80
Enter the second number
70
The value for x is: 80.
The value for y is: 70.
After swapping:
The value for x is: 70.
The value for y is: 80.

Explanation / Answer

#include <iostream>

using namespace std;

void swap(int &x, int &y);

int main() {

       int one, two;

       cout << "Enter the first number: ";

       cin >> one;

       cout << "Enter the second number: ";

       cin >> two;

       cout << "The value for x is " << one << "." << endl;

       cout << "The value for y is " << two << "." << endl;

       swap(one, two);

       cout << "The value for x is " << one << "." << endl;

       cout << "The value for y is " << two << "." << endl;

       system("pause");

}

void swap(int &x, int &y) {

       int temp = x;

       x = y;

       y = temp;

}

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