Calculadora em C/C++

#include <iostream>

using namespace std;



class calc {

private:

double num[2];



public:

double somar();

double subtrair();

double multi(){ return num[0] * num[1]; }

double dividir(){ return num[0] / num[1]; }

calc (double d, double c) {

num[0] = d;

num[1] = c;

}

};



double calc::somar(){ return num[0]+num[1]; }

double calc::subtrair(){ return num[0]-num[1]; }



int main(void) {

double n[2];

cout << "Número: " << endl;

cin >> n[0];

cout << "Número: " << endl;

cin >> n[1];

calc calcular(n[0], n[1]);

cout << calcular.somar() << endl;;

cout << calcular.subtrair() << endl;;

cout << calcular.multi() << endl;;

cout << calcular.dividir() << endl;;

string k;

cin >> k;

}