#include <iostream>
#include <vector>
#include <random>
using namespace std;
 
int main() {
	vector<int> listOfNumbers;
	const int maxOfNumbers = 100;
	const int howManyNumbersToSelect = 6;
	for (int index = 0; index < maxOfNumbers; index++)
	{
		listOfNumbers.push_back(index);
	}
 
	std::random_device rd;
    std::mt19937 mt(rd());
    std::uniform_int_distribution<> dist(1, maxOfNumbers);
 
    for(int index = 0; index < howManyNumbersToSelect; index++)
    {
    	int randomNumber = dist(mt) - 1; //because of indexing
    	cout << listOfNumbers[randomNumber] << " ";
    	listOfNumbers.erase(listOfNumbers.begin() + randomNumber);
    }
	return 0;
}

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