标准答案

#include <bits/stdc++.h>
using namespace std;

int main() {
    int k, a;
    cin >> k;
    int s1 = 0;
    int s2 = 0;
    int s3 = 0;

    for (int i = 0; i < k; i++) {
        cin >> a;
        if (a == 1) {
            s1 += 1;
        }
        if (a == 5) {
            s2 += 1;
        }
        if (a == 10) {
            s3 += 1;
        }
    }

    cout << s1 << endl;
    cout << s2 << endl;
    cout << s3 << endl;

    return 0;
}