#include <iostream>
#include <functional>
#include <iterator>
#include <algorithm>
#include <string>
#include <list>
#include <vector>
#include <random>
 
int main() {
	std::list<std::string> l{"Hello", "Stack", "Over", "flow", "!!"};
    std::vector<std::reference_wrapper<std::string>> v(l.begin(), l.end());
    std::random_device rd;
    std::mt19937 generator(rd());
    std::shuffle(v.begin(), v.end(), generator);
    std::cout << "Original list:\n";
    std::copy(l.begin(), l.end(), std::ostream_iterator<std::string>(std::cout, " "));
    std::cout << "\nShuffled view:\n";
    std::copy(v.begin(), v.end(), std::ostream_iterator<std::string>(std::cout, " "));
}

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