tongchan_cua_mang

#include<iostream>
using namespace std;
int tongchan(int a[], int n) {
	if (n <0) {
		return 0;
	}
	else {
		if (a[n] % 2 == 0) {
			return a[n] + tongchan(a, n - 1);
		}
		else {
			return tongchan(a, n - 1);
		}
	}
}
void main() {
	int n;
	cout << "nhap n :";
	cin >> n;
	int *a = new int[n];
	for (int i = 0; i < n; i++) {
		cout << "nhap a[" << i+1 << "]";
		cin >> a[i];
	}
	cout << tongchan(a, n);
	system("pause");

}