Lottery URNG Randomv2

#include <iostream>
#include <cstdlib>
#include <ctime>
#include <set>
#include <random>

using namespace std;

void lotteryGen(int lotteryType, int numberCount)
{

    random_device rd;
    mt19937 gen(rd());
    uniform_int_distribution<> dist(1, numberCount);

    set<int> lotteryNumber;

    while (lotteryNumber.size() != lotteryType)
    {
        int randtemp = dist(gen);

        lotteryNumber.insert(randtemp);
    }

    for (auto it = lotteryNumber.begin(); it !=
                                          lotteryNumber.end();
         ++it)
    {

        cout << ' ' << *it;
    }
    cout << "" << endl;
}

int main()
{

    int times = 0;

    int typeLottery = 0;

    cout << "Adja meg hanyas lotto (5,6,7)" << endl;
    cin >> typeLottery;

    if (typeLottery != 5 && typeLottery != 6 && typeLottery != 7)
    {
        exit(3);
    }
    cout << "Adja meg hany mezot szeretne generalni:" << endl;

    cin >> times;

    for (int i = 1; i <= times; i++)
    {

        switch (typeLottery)
        {
        case 5:
            lotteryGen(5, 90);
            break;
        case 6:
            lotteryGen(6, 45);
            break;
        case 7:
            lotteryGen(7, 35);
            break;
        default:
            cout << "Adja meg ujra a kivant tipust";
            break;
        }
    }

    return 0;
}