Question

Design a swap function with the following interface:

void swap( int *x,    int *y)

{

}

In your main( ), you perform the following test:

int main( )

{

            int a = 10, b = 20;

            cout << “a = “ << a << “   b= “   << b   << endl;

            swap( a, b);

            cout << “a = “ << a << “   b= “   << b   << endl;

            return 0;

                        …

}

Answer 1

#include <iostream>
using namespace std;

void swap( int *x, int *y)
{
    int temp = *x;
    *x = *y;
    *y = temp;
}

int main( )
{
    int a = 10, b = 20;
    cout << "a = " << a << "   b= "   << b   << endl;
    swap(&a, &b);
    cout << "a = " << a << "   b= "   << b   << endl;
    return 0;
}

$\color{blue}Hey,\;Please\;let\;me\;know\;if\;you\;need\;me\;to\;make\;any\;changes. \\ I\;would\;really\;appreciate\;an\;upvote.\;Thank\;you!$