Submission #1197762

#	Time	Username	Problem	Language	Result	Execution time	Memory
1197762		rhombus	Semiexpress (JOI17_semiexpress)	C++20	0 / 100	1 ms	320 KiB

semiexpress

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    ll n, m, k;
    cin >> n >> m >> k;
    ll a, b, c;
    cin >> a >> b >> c;
    k -= m;
    ll t;
    cin >> t;
    vector <ll> s(m);
    for (int i = 0; i < m; i++) {
        cin >> s[i];
    }
    ll ans = 0;
    vector <ll> bonus;
    for (int i = 0; i < m - 1; i++) {
        ll tm = (s[i] - 1) * (ll) b;
        if (tm > t) {
            break;
        }
        ans++;
        ll stations = s[i + 1] - s[i] - 1;
        ll rem = (t - tm) / a;
        rem = min(rem, stations);
        ans += rem;
        ll prev = s[i] + rem;
        for (int j = 0; j < k; j++) {
            int cur = prev + 1;
            if (cur >= s[i + 1]) {
                break;
            }
            ll new_tm = (cur - s[i]) * (ll) c + tm;
            if (new_tm > t) break;
            stations = s[i + 1] - cur - 1;
            rem = (t - new_tm) / a;
            rem = min(rem, stations);
            bonus.push_back(rem + 1);
            prev = cur + rem;
        }
    }
    if ((s[m - 1] - s[0]) * (ll) b <= t) {
        ans++;
    }
    sort(bonus.rbegin(), bonus.rend());
    for (int i = 0; i < max(k, (ll) bonus.size()); i++) {
        ans += bonus[i];
    }
    cout << ans - 1 << '\n';
    return 0;
}

• Subtask 1: 0 / 18
• Subtask 2: 0 / 30
• Subtask 3: 0 / 52