двумерный четные

#include <iostream>
using namespace std;
int**creat(int &n, int &m)
{
	cout << "n="; cin >> n; cout << "m="; cin >> m;
	int**mas = new int *[n];
	for (int i = 0; i < n; ++i)mas[i] = new int[m];
	for (int i = 0; i < n; ++i)
		for (int j = 0; j < m; ++j)
		{
			cout << "mas[" << i << "][" << j << "]=";
			cin >> mas[i][j];
		}
	return mas;
}
int main()
{
	int n, m, k = 0;
	int s = 0;
	int **a = creat(n, m);
	for (int i = 0; i < n; i++)
		for (int j = 0; j < m; ++j)
		{
			if (i%2==0 && j%2==0)
			{
				s += i + j;
			}
		}
	if (s % 2 == 0)
		cout << "s=" << s << endl;
	for (int i = 0; i < n; i++)delete[]a[i];
	delete[]a;
	system("pause");
	return 0;
}