Submission #1308192

#	Time	Username	Problem	Language	Result	Execution time	Memory
1308192		shirokito	Semiexpress (JOI17_semiexpress)	C++20	48 / 100	1095 ms	584 KiB

semiexpress

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

#define all(a) (a).begin(), (a).end()

using ll = long long;

const int N = 1e5 + 24;

int n, m, k, s[N];
ll A, B, C, maxTime;

void solve() {
    cin >> n >> m >> k;
    cin >> A >> B >> C;
    cin >> maxTime;

    for (int i = 1; i <= m; i++) {
        cin >> s[i];
    }

    s[m + 1] = n + 1;

    ll ans = 0;
    multiset<ll> gain;

    for (int i = 1; i <= m; i++) {
        ll L = s[i], R = s[i + 1] - 1;

        for (ll cnt = 0, l = L; l <= R; cnt++) {
            ll current = (L - 1) * B + (l - L) * C;
            if (current > maxTime) break;

            ll r = min(R, (maxTime - current + l * A) / A);
            if (r < l) break;

            if (cnt == 0) {
                ans += r - l + 1;
            }
            else {
                ans += r - l + 1;
                gain.insert(r - l + 1);

                if (gain.size() > k - m) {
                    ll bad = *gain.begin();
                    gain.erase(gain.find(bad));
                    ans -= bad;
                }
            }

            l = r + 1;
        }
    }

    cout << ans - 1 << '\n';
}

signed main() {
    cin.tie(0) -> sync_with_stdio(0);

    int T = 1; // cin >> T;
    while (T--) {
        solve();
    }
}

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