#include <iostream>
#include <cstdlib>
#include <ctime>
using namespace std;
int **init_a(int **a, int n) {

         a=new int *[n];
         for (int i=0;i<n;i++)
                  a[i]=new int[n];
         }

         for (int i=0;i<n;i++) {
                  for (int j=0;j<n;j++) {
                          a[i][j]=rand()%10;
                  }
         }
         return a;
}

void print_2D(int **a, int n) {
        for (int i=0;i<n;i++)  {
                 for (int j=0;j<n;j++) {
                          cout << a[i][j] << "\t ";
                 }
                 cout << endl;
        }
        cout << endl;
}
int main(void) {
        int **a=nullptr;
        a=init_a(a,4);
        print_2D(a,4);
        return 0;
        
}