Memory management in allocating 2-D array

Question

I have allocated a two dimensional array using the following code:

// Dynamic allocation
        int **matrix=new int*[n];
        for(int i=0;i

        

Answer 1

for(int i=0;i

You need to delete each of the internal arrays and then delete the array.

As has been suggested in a comment. A safer way of doing this would be to use standard containers such as std::vector. You could do something like this then:

std::vector> matrix;

This would give you a two dimensional array but you would not have to handle the cleanup.