sorting vector of vector of strings in C++

Question

I am having trouble to figure out, how to sort a vector of vector of strings, here is the testing code.

#include <iostream>
#include <vector>
#incl         


        

Answer 1

Alright: new -simpler- answer, having learned that vectors are comparable:

//sorting code here...
std::sort(data_var.begin(), data_var.end(), std::greater>());