insert into vector c 2b 2b

1// where v is the vector to insert, i is
2// the position, and value is the value
3
4v.insert(v.begin() + i, v2[i])

1// CPP program to create an empty vector 
2// and push values one by one. 
3#include <vector>
4
5using namespace std;
6int main() 
7{ 
8    // Create an empty vector 
9    vector<int> vect;  
10    //add/push an integer to the end of the vector
11    vect.push_back(10); 
12	//to traverse and print the vector from start to finish
13    for (int x : vect) 
14        cout << x << " ";
15
16    return 0; 
17}

1vector_name.push_back(element_to_be_added);

1// vector::push_back
2#include <iostream>
3#include <vector>
4
5int main ()
6{
7  std::vector<int> myvector;
8  int myint;
9
10  std::cout << "Please enter some integers (enter 0 to end):\n";
11
12  do {
13    std::cin >> myint;
14    myvector.push_back (myint);
15  } while (myint);
16
17  std::cout << "myvector stores " << int(myvector.size()) << " numbers.\n";
18
19  return 0;
20}

1// inserting into a vector
2#include <iostream>
3#include <vector>
4
5int main ()
6{
7  std::vector<int> myvector (3,100);
8  std::vector<int>::iterator it;
9
10  it = myvector.begin();
11  it = myvector.insert ( it , 200 );
12
13  myvector.insert (it,2,300);
14
15  // "it" no longer valid, get a new one:
16  it = myvector.begin();
17
18  std::vector<int> anothervector (2,400);
19  myvector.insert (it+2,anothervector.begin(),anothervector.end());
20
21  int myarray [] = { 501,502,503 };
22  myvector.insert (myvector.begin(), myarray, myarray+3);
23
24  std::cout << "myvector contains:";
25  for (it=myvector.begin(); it<myvector.end(); it++)
26    std::cout << ' ' << *it;
27  std::cout << '\n';
28
29  return 0;
30}