How to declare a variable size 2D array in C?

Question

I have a problem with a project. I have to make a variable size 2D array for storing some prediction error..so this is about images. The trouble is that I have to load image

Answer 1

You need to allocate memory dynamically. Use double pointer logic.

Ex:

int n=10; <<-u can change this.
int **a;
a=(int **)malloc(sizeof(*int)*n);
for (int i=0;i