#include 
int main()
{
    int x = 80; 
    int y& = x;
    x++;
    cout << x << " " << --y;
    return 0;
} 

#include 
int main()
{
    int x = 80; 
    int &y = x;
    x++;
    cout << x << " " << --y;
    return 0;
} 

#include 
int main()
{
    int x = 10;
    int &y = x;
    x++;
    cout<< x << " " << y++;
    return 0; 
}
 

#include 
int main()
{
    int x = 10;
    int &y = x;
    x = 25;
    y = 50;
    cout<< x << " " << --y;
    return 0; 
} 

#include 
enum bix
{
    a=1, b, c
};
int main()
{
    int x = c;
    int &y = x;
    int &z = x;
    y = b;
    cout<< z--;
    return 0; 
} 

#include 
int main()
{
    int x = 10, y = 20;
    int *ptr = &x;
    int &ref = y;
 
    *ptr++;
     ref++;    
 
    cout<< x << " " << y;
    return 0; 
} 

#include 
int main()
{
    int x = 0;
    int &y = x; y = 5; 
    while(x <= 5)
    {
        cout<< y++ << " ";
        x++;
    }
    cout<< x; 
    return 0; 
} 

#include 
int main()
{
    int m = 2, n = 6;
    int &x = m;
    int &y = n;
    m = x++; 
    x = m++;
    n = y++;
    y = n++;
    cout<< m << " " << n; 
    return 0; 
} 

#include 
int main()
{
    int m = 2, n = 6;
    int &x = m++;
    int &y = n++;
    m = x++; 
    x = m++;
    n = y++;
    y = n++;
    cout<< m << " " << n; 
    return 0; 
} 

#include 
class BixTest
{
    public:
    BixTest(int &x, int &y)
    {
        x++;
        y++;
    } 
};
int main()
{
    int a = 10, b = 20;
    BixTest objBT(a, b); 
    cout<< a << " " << b; 
    return 0; 
}