URI 1118 Solution

#include <iostream>

#include <iomanip>

using namespace std;

int main()

{

    float x = -1, y = -1;

    int value = 1;

    while(value == 1)

    {

        do{

            cin >> x;

            if(x < 0 || x > 10)

            cout << "nota invalida" << endl;

            }while(x < 0 || x > 10);

        do{

            cin >> y;

            if(y < 0 || y > 10)

            cout << "nota invalida" << endl;

             }while(y < 0 || y > 10);

        cout << "media = " << fixed << setprecision(2) << ((x + y) / 2) << endl;

        do{

             cout << "novo calculo (1-sim 2-nao)" << endl;

             cin >> value;   

             }while(value != 1 && value != 2);

    }

    return 0;

}