How to use QVector as two dimensional array?
multidimensional-array, qt, vector
Solution
The same way as a `std::vector`:
QVector< QVector< int > > twoDArray; // Empty.
QVector< QVector< int > > twoDArray( 2 ); // Contains two int arrays.
twoDArray[0].resize(4);
twoDArray[0][2] = 4; // Assign to the third element of the first array.
...
etc...
Problem
How do I declare, initialise, and assign values to a `QVector` as a 2 dimensional array?