How can I push_back data in a 2d vector of type int

Question

I have a vector and want to store int data in to it at run time can I store the data in a 2D vector in this manner ?

std::vector> n         


        

Answer 1

Yes, but you also need to push each of the sub-vectors:

std::vector> normal;
for(int i=0; i<10; i++)
{
    normal.push_back(std::vector());
    for(int j=0; j<20; j++)
    {    
        normal[i].push_back(j);    
    }
}