swapping c and d variables
c = c + d ; d = c - d ; c = c - d ; cout << " values ▁ after ▁ swapping ▁ are ▁ : ▁ " << endl ; cout << " a ▁ = ▁ " << a << endl ; cout << " b ▁ = ▁ " << b << endl ; cout << " c ▁ = ▁ " << c << endl ; cout << " d ▁ = ▁ " << d << endl ; }