C++ DAY1

#include 
 
using namespace std;
 
void fun(int a,int b)
{
    int t;
    t=a;
    a=b;
    b=t;
    cout << "int : a=" << a << "  b=" << b << endl;
}
void fun(char a,char b)
{
    char t;
    t=a;
    a=b;
    b=t;
    cout << "char : a=" << a << "  b=" << b << endl;
}
void fun(double a,double b)
{
    double t;
    t=a;
    a=b;
    b=t;
    cout << "double : a=" << a << "  b=" << b << endl;
}
void fun(string a,string b)
{
    string t;
    t=a;
    a=b;
    b=t;
    cout << "string : a=" << a << "  b=" << b << endl;
}
int main()
{
    fun(3,8);
    fun('x','y');
    fun(3.14,2.88);
    fun("hello","world");
    return 0;
}