how to get iterator to a particular position of a vector

Suppose i have a

std::vector<int> v
//and ...
for(int i =0;i<100;++i) 
 v.push_back(i);

now i want an iterator to, let's say 10th element of the vector.

without doing the following approach

std::vector<int>::iterator vi;
vi = v.begin();
for(int i = 0;i<10;i++)
  ++vi;

as this will spoil the advantage of having random access iterator for a vector.