vector<int> v;

v.push_back(5); // Add an element to the vector

v.insert(v.end(), 5, 1);// Duplicate the element 1 five times

for (auto i: v)

  std::cout << i << ' ';

//@ Author: Subodh Chandra Shil

//^ adding multiple elements in vector at a same time

//* Syntax: v_name.insert(v_name.begin() + index_after_want_to_add, {element1, element2, element3, ...})

v.insert(v.begin() + 4, {1, 2, 3});

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

  cout << (*it) << endl;