ex3_42.cpp

#include <iostream>
#include <vector>

using std::vector; using std::cout; using std::endl; using std::begin; using std::end;

int main()
{
  vector<int> ivec{0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
  int int_arr[10];
  
  for (int* i = begin(int_arr); i != end(int_arr); ++i)
    *i = ivec[i-begin(int_arr)];
    
  for (auto i : int_arr) cout << i << " ";
  cout << endl;
  
  return 0;
}