NumToString

#include <cstdlib>
#include <iostream>

using namespace std;

int main(void)
{


        int num,c1,c2;
        string u[] = {"zero", "uno" , "due", "tre", "quattro", "cinque", "sei", "sette", "otto", "nove" };
        string d[] = {"dieci", "undici", "dodici", "tredici", "quattordici", "quindici", "sedici", "diciassette", "diciotto", "diciannove"};
        string nd[] = {"venti", "trenta", "quaranta", "cinquanta", "sessanta", "settanta", "ottanta", "novanta"};
        cout << "Inserire numero in cifre:(0-99)" << endl;
        cin >> num;
        c1 = (num / 10);
        c2 = num - (c1 * 10);
        /**********************************************************************/
        if (num < 10)
            cout << u[num] << endl;
        else
            if (num > 10 && num < 20)
                cout << d[c2] << endl;
            else
                if (num > 20 && num < 100)
                    cout << nd[c1 - 2] << u[c2] << endl;
                else
                    cout << "Valore non valido! " << endl;
        /**********************************************************************/
        system("pause >>null");
        return EXIT_SUCCESS;
}