// vector::emplace_back #include <iostream> #include <vector> int main () { std::vector<int> myvector = {10,20,30}; myvector.emplace_back (100); myvector.emplace_back (200); std::cout << "myvector contains:"; for (auto& x: myvector) std::cout << ' ' << x; std::cout << '\n'; return 0; }