如何将数组打印到控制台？

Question

I'm currently working to make a 2D grid which the user can select the start destination, end destination and obstacles in between. I would like to print the array (as shown above) to the console to help users visualise the the array they are traversing. I'm using Visual Studio and working in c++. Further to this, is there a function for the user to change particular parts of the array to 0's to create "obstacles"?

        { { { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 } },
          { { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 } },
          { { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 } },
          { { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 } },
          { { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 } },
          { { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 } },
          { { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 } },
          { { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 } },
          { { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 } } }
    };

Answer 1

To change specific parts of an array you can access it's values like this:

arr[4][5] = 5; // Returns the sixth element in the fifth row and changes it to 5

To print you would right something like this assuming you are working with std::vector (if not substitute arr.size() with a literal or your own variable).

for(int i = 0; i < arr.size(); i++){
    for(int j = 0; j < arr[i].size(); j++){
        std::cout << arr[i][j] << ", ";
    }
    std::cout << std::endl;
}