#include <iostream>
#include <string>
#include <vector>

int main(){
  using namespace std;

  vector<double> vd;

  for(int i = 1; i <= 10; i++)
     vd.push_back(i + i/10.0);

  auto it1 = vd.begin();    // auto covers the type vector<double>::iterator
 
  while(it1 != vd.end()){
     cout << *it1 << " ";   // 1.1 2.2 3.3 4.4 5.5 6.6 7.7 8.8 9.9 11 
     ++it1;
  }
}