Int a; Int b; Cout<< (int)&b-(int)&a << endl;//this is wrong, undefined Int a[2] Cout<< (int)&a[1]-(int)&a[0]<<endl; //this is right

Int a;
Int b;
Cout<< (int)&b-(int)&a<< endl;//this is wrong, undefined
Int a[2]
Cout << (int)&a[1]-(int)&a[0]<< endl; //this is right