[Frage] C++

#include <cstdlib>
#include <iostream>
#include <conio.h>
using namespace std;

int main(int argc, char *argv[])
{
    char buchstabe;
    
    cout << "Gib einen Buchstaben ein zu dem ein Name ausgegeben wird" << endl;
    cin >> buchstabe;
    
    switch (buchstabe)
    {
           case 'a':
                cout << "Anton";
                break;
           case 'b':
                cout << "Bernd";
                break;
           case 'c':
                cout << "Chris";
                break;
           case 'd':
                cout << "Dennis";
                break;
           case 'e':
                cout << "Emma";
                break;
           case 'f':
                cout << "Franz";
                break;
           case 'g':
                cout << "Gustav";
                break;
           case 'h':
                cout << "Hannes";
                break;
           case 'i':
                cout << "Ina";
                break;
           case 'j':
                cout << "Jannes";
                break;
           case 'k':
                cout << "Kevin";
                break;
           case 'l':
                cout << "Lucas/Lukas";
                break;
           case 'm':
                cout << "Moritz";
                break;
           case 'n':
                cout << "Nils";
                break;
           case 'o':
                cout << "Otto";
                break;
           case 'p':
                cout << "Phillip";
                break;
           case 'q':
                cout << "Quamby";
                break;
           case 'r':
                cout << "Ralf";
                break;
           case 's':
                cout << "Stefan";
                break;
           case 't':
                cout << "Tim";
                break;
           case 'u':
                cout << "Ulf";
                break;
           case 'v':
                cout << "Victor";
                break;
           case 'w':
                cout << "Walter";
                break;
           case 'x':
                cout << "Xaver";
                break;
           case 'y':
                cout << "Yamba";
                break;
           case 'z':
                cout << "Zack";
                break;
    }
        getch();
}

system("cls");

void main()
{
    char sollweiterlaufen;
    [deine anderen Variablen]
    do
    {
        [rest des Programms]
        cout << "Programm von vorne beginnen? (j/n): ";
        cin >> sollweiterlaufen;
    }while(sollweiterlaufen == 'j');
}