#include using namespace std; int main (){ double m = 0; double n = 0; double ans = 0; char sign; string reply; string no; string yes; cout << "Enter two operands:" << endl; cin >> m >> n; cout << "\n" << "Enter operator sign:" << endl; cin >> sign; cout << "\n" << "The result:" << endl; switch (sign){ case '+': cout << m << " + " << n << " = " << m + n; ans = m + n; break; case '-': cout << m << " - " << n << " = " << m - n; ans = m - n; break; case '*': cout << m << " * " << n << " = " << m * n; ans = m * n; break; case '/': cout << m << " / " << n << " = " << m / n; ans = m / n; } while (ans != 0){ cout << "\n" << endl; cout << "Do you want to do further arithmatic with " << ans << " ?" << endl; cin >> reply; if (reply != no){ cout << "\n" << "Enter operand to work with " << ans << endl; cin >> m; cout << "\n" << "Enter operation sign:" << endl; cin >> sign; cout << "\n" << "The result:" << endl; switch (sign){ case '+': cout << ans << " + " << m << " = " << ans + m; ans += m; break; case '-': cout << ans << " - " << m << " = " << ans - m; ans -= m; break; case '*': cout << ans << " * " << m << " = " << ans * m; ans *= m; break; case '/': cout << ans << " / " << m << " = " << ans / m; ans /= m; } } } }

Calculater that stores answer for further calculations