Submission #940014

#	Time	Username	Problem	Language	Result	Execution time	Memory
940014		qwe1rt1yuiop1	Semiexpress (JOI17_semiexpress)	C++14	100 / 100	1 ms	600 KiB

semiexpress

#include <bits/stdc++.h>
#define int long long
using namespace std;
using pii = pair<int, int>;

void solve()
{
    int n, m, k, a, b, c, t;
    cin >> n >> m >> k >> a >> c >> b >> t;
    k -= m;
    vector<int> v(m);
    for (auto &i : v)
        cin >> i, --i;

    vector<int> lft(m - 1), cur(m - 1, 0);
    priority_queue<pii> pq;
    for (int i = 0; i < m - 1; ++i)
    {
        lft[i] = t - c * v[i];
        if (lft[i] >= 0)
        {
            int add = 1 + lft[i] / a;
            add = min(add, v[i + 1] - v[i] - cur[i]);
            lft[i] -= b * add;
            cur[i] += add;
            if (k > 0)
            {
                add = 1 + lft[i] / a;
                add = min(add, v[i + 1] - v[i] - cur[i]);
                pq.emplace(add, i);
            }
        }
    }

    while (k--)
    {
        auto [add, i] = pq.top();
        pq.pop();
        if (lft[i] >= 0)
        {
            lft[i] -= b * add;
            cur[i] += add;

            add = 1 + lft[i] / a;
            add = min(add, v[i + 1] - v[i] - cur[i]);
            pq.emplace(add, i);
        }
    }

    int ans = accumulate(cur.begin(), cur.end(), 0LL);
    if (c * v.back() > t)
        --ans;
    cout << ans << '\n';
}

/*
10 3 5
10 3 5
30
1 6 10

10 3 5
10 3 5
25
1 6 10

90 10 12
100000 1000 10000
10000
1
10 20 30 40 50 60 70 80 90
 */

signed main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);

    solve();

    return 0;
}

Compilation message (stderr)

semiexpress.cpp: In function 'void solve()':
semiexpress.cpp:37:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   37 |         auto [add, i] = pq.top();
      |              ^

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