#include <iostream>
#include <cstdlib>
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]<<" ";
		}
		cout<<endl;
	}
}
int main()
{
	int **a=nullptr;
	a=init_a(a,4);
	print_2D(a,4);
	return 0;
}