Ecco una prima boza dell'esercizio di verifica del 10 gennaio....il prossimo passo sarà implementare le funzioni!

#include <stdlib.h>
#include <stdio.h>
#include <time.h>
using namespace std;
int main()
{
    int vett[10];
    int i;
    int valore;
    int scelta=0;
    srand(time(0));
   
    printf( " 1) vuoi generare i numeri a caso \n 2) inserire i valori manualmente\n");
    scanf ("%d",&scelta);
    if (scelta > 2)
    {printf (" errore! ripeti la tua scelta\n");
    scanf ("%d",&scelta);
    }
    for (i=0;i<10;i++)
        { if (scelta==1)
          {valore=rand()/10;}
          else
          {printf (" inserisci un valore :");
          scanf ("%d",&valore);}
                        if ((valore>19) && (valore < 51))
                           {vett[i]=valore;
                            if (i%2==0)
                               {printf ("Il valore e' : %d\n", vett[i]);}
                                       switch (i)
                                       {case 1: vett[i]++;
                                                printf("incremento i dispari di 1\n");
                                                break;
                                        case 3: vett[i]+=3;
                                                printf("incremento i dispari di 3\n");
                                                break;
                                        case 5: vett[i]++;
                                                printf("incremento i dispari di 1\n");
                                                break;
                                        case 7: vett[i]+=3;
                                                printf("incremento i dispari di 3\n");
                                                break;
                                        case 9: vett[i]++;
                                                printf("incremento i dispari di 1\n");
                                                break;
                                        }
                            }
                             else
                             i--;}
system ("PAUSE");
}