Submission

Score: 100

User: cheetah

Problemset: Slowly Express

Language: cpp

Time: 0.002 second

Submitted On: 2026-06-04 00:29:10

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

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    int n = 0, num = 0;

    while (true) {
        int cnt = 0;
        cin >> n;

        if (n < 0) {
            break;
        }

        n += num;
        cnt = n / 800;
        num = n % 800;

        if (num >= 500) {
            ++cnt;
            num = 0;
        }

        cout << cnt << "\n";
    }

    return 0;
}