题解 | #辅导计划#

using namespace std;

int main() {
    int n;
    float avg;
    while (cin >> n) {
        int a[n];
        for (int i = 0; i < n; ++i) {
            cin >> a[i];
        }
        int cnt = 0;
        for (int i = 0; i < n; ++i) {
            cnt += a[i];
        }
        avg = (float) cnt / n;
        for (int i = 0; i < n; ++i) {
            if (a[i] < avg) {
                cout << a[i] << " ";
            }
        }
        cout << endl;
    }
    return 0;
}