gistfile1.cpp

#include <iostream>
using namespace std;

void change_array(int a[], int i, int n) {
	a[i] = n;
}

int main() {
	int a[] = {1,2,3,4,5,6};
	change_array(a, 3, 789);
	cout << a[3] << endl; // Outputs "789"

	return 0;
}