#include <iostream>
using namespace std;
// The function below accepts an address and
// an integer n and communicates back by writing
// the first n non-negative even integers in
// the specified address
void write_seq(int *a, int n) {
for (int i = 0; i < n; ++i) {
a[i] = i * 2;
}
}
// The function below accepts an address and
// an integer n and negates the n integers
// that are stored in the specified address
void negate_seq(int *a, int n) {
for (int i = 0; i < n; ++i) {
a[i] = -a[i];
}
}
int main() {
int a[10] = {};
write_seq(a, 10); // assign even numbers to the array
negate_seq(a, 10); // negate values of a
for (const auto &element : a) {
cout << element << " ";
}
cout << endl;
return 0;
}
