# include <iostream.h>
# include <conio.h>
# include <process.h>
void main()
{
    char ch;
    int opt (const int,const int, int &);
    int opt1 (const int,const int,int &);
    clrscr();
    gotoxy (29,02);
    cout<<"M A I N  M E N U "<<endl;
    gotoxy (20,04);
    cout<<"FIBONACCI SERIES.......................1"<<endl;
    gotoxy (20,05);
    cout<<"SUM OF THE DIGITS ENTERED..............2"<<endl;
    gotoxy (20,06);
    cout<<"ASCII CODE OF THE ENTERED CHARACTER....3"<<endl;
    gotoxy (20,07);
    cout<<"EXIT...................................4"<<endl;
    cout<<"\n\n\n\nEnter your choice....";
    ch=getche();
    cout<<"\nThe entered choice is......";
    putch(ch);
    getch();
    switch (ch)
{


        case '2':    clrscr();
                int n=0,sum=0;
                int p= opt1(2,n,sum);
                cout<<"\nThe sum of the entered digits is..."<<p;
                break;
}



int opt1 (const int ch,const int n,int &sum)
{
    char rep='y';
    switch (ch)
    {
        case 2:        while (rep=='y'||rep=='Y')
                {
                    cout<<"\nEnter any number";
                    cin>>n;
                    sum=sum+n;
                    cout<<"\nDo you want to continue ?";
                    cin>>rep;
                }
    }
    return sum;
}

break;

switch (ch) {


        case '2':    
                clrscr();
                int n=0,sum=0;
                int p= opt1(2,n,sum);
                cout<<"\nThe sum of the entered digits is..."<<p;
                break;
        default:
                break;
    }