Finds best (closest to square) grid sides for a number of square tiles

nearest square grid.cpp

int n_tiles; //number of tiles
int grid_x = 0;
int grid_y = 0;

for(int n = 1; n < ceil(sqrt(n_tiles) + 1); n++) {
    if(n_tiles%n == 0) {
      grid_y = n;
      grid_x = n_tiles/n;
    }
}