include include

using namespace std;

int main() {
int x[100];
int count = 0;

x[1] = 5;
x[2] = -2;
for (int i = 3; i <= 100; i++) {
x[i] = i + cos(x[i - 2]);
if (x[i] < 0) {
count++;
}
}
cout << "Количество отрицательных членов: " << count << endl;
return 0;

}