cpp convert vector to set

#include <iostream>
#include <vector>
#include <set>

int main() {
    std::vector<int> vec = {3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5};
    std::set<int> s(vec.begin(), vec.end());
    for (int x : s) {
        std::cout << x << " ";
    }
    return 0;
}