Write a function using reference variables as arguments to swap the values of a pair of integers in a program
here's an example program that swaps the values of two integers using a function with reference variables: #include <iostream> using namespace std; // function to swap two integers using reference variables void swap(int& x, int& y) { int temp = x; x = y; y = temp; } int main() { int num1 = 10, num2 = 20; // before swapping cout << "Before swapping: " << endl; cout << "num1 = " << num1 << ", num2 = " << num2 << endl; // swap the values of num1 and num2 swap(num1, num2); // after swapping cout << "After swapping: " << endl; cout << "num1 = " << num1 << ", num2 = " << num2 << endl; return 0; } Output: Before swapping: num1 = 10, ...