• Fuzzy about one of the hints

Question related to mission Moore Neighbourhood

 

Can someone please explain in layman terms what this piece of code is doing:

    if 0 <= n_row < len(grid) and 0 <= n_col < len(grid[n_row]):
        if grid[n_row][n_col]:
            count += 1

return count
Created at: 2015/01/10 13:50; Updated at: 2016/03/01 11:19
6
shogun000