Vector back function

[areyoupp]

Hi my question is very easy.

// vector::back
#include <iostream>
#include <vector>
using namespace std;

int main ()
{
  vector<int> myvector;

  myvector.push_back(10);

  while (myvector.back() != 0)
  {
    myvector.push_back ( myvector.back() -1 );
  }

  cout << "myvector contains:";
  for (unsigned i=0; i<myvector.size() ; i++)
    cout << " " << myvector[i];

  cout << endl;

  return 0;
}

Output:
myvector contains: 10 9 8 7 6 5 4 3 2 1 0
Why is the '10' number on the vector?

I think output:
myvector contains: 9 8 7 6 5 4 3 2 1 0
thank you and sorry my english.

[Bazzy]

Why is the '10' number on the vector?

Because you put it there: Line 10 myvector.push_back(10);

[areyoupp]

mmmm.i understand now.thank you