What is the most efficient way to initialize a 3D vector?

Question

I have a 3D string vector in C++:

vector>> some_vector

That I am trying is to find a fast method to all

Answer 1

To initialize a 3D string vector you shall initialize the vector structure for each dimension one at a time and for each index, for instance:

  vector > > myvector; //declare the 3D vector
  for(k=0; k<3; k++)
  {
    myvector.push_back(vector >()); //initialize the first index with a 2D vector
    for(i=0; i<4; i++)
    {
      myvector[k].push_back(vector()); //initialize the 2 index with a row of strings
      for(j=0; j<4; j++)
      {
         result = " whatever you want to insert in the vector element";
         myvector[k][i].push_back(result); //fulfill the last index regularly
      } 
    }
  }