#include "grid2D.h" #include <iostream> int main() { Grid2D grid(40,60); int i = 0; for (int x = 0; x < 40; ++x) for (int y = 0; y < 60; ++y) { grid(x,y) = i++; } std::cout << grid(20,30) << std::endl; std::cout << grid << std::endl; }