iteratorexamples2.cpp

vector<int> v1 = {3,4};
vector<int> v2 = {1,2,5,6};
// Get the position of "5" in the vector and store it in i
vector<int>::iterator i = find(v2.begin(), v2.end(), 5);

//Now we use the insert iterator to add all elements in 
//v1 to v2 at the position of i
insert_iterator<vector<int>> ins_i(v2, i);
copy(v1.begin(), v1.end(), ins_i);

// v2 is now {1,2,3,4,5,6}