#include <iostream>
// Function declaration
void swap(int& a, int& b);
int main() {
// Variable declaration and initialization
int num1 = 5;
int num2 = 10;
// Output the initial values
std::cout << "Before swapping: num1 = " << num1 << ", num2 = " << num2 << std::endl;
// Call the swap function
swap(num1, num2);
// Output the swapped values
std::cout << "After swapping: num1 = " << num1 << ", num2 = " << num2 << std::endl;
return 0;
}
// Function definition
void swap(int& a, int& b) {
// Swap the values using a temporary variable
int temp = a;
a = b;
b = temp;
}