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Submission #698077

# Submission time Handle Problem Language Result Execution time Memory
698077 2023-02-12T08:31:27 Z finn__ City (BOI06_city) C++17
90 / 100
 1000 ms 16840 KB 
#include <bits/stdc++.h>
using namespace std;

#pragma GCC optimize("O3")
#pragma GCC target("avx2")

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

    uint64_t n, t, k;
    cin >> n >> t >> k;

    vector<uint64_t> c(k);
    for (uint64_t &x : c)
        cin >> x;

    auto compare_cost = [&c, &t](pair<uint64_t, uint64_t> const &x, pair<uint64_t, uint64_t> const &y)
    {
        return t * x.first + c[x.second] > t * y.first + c[y.second];
    };

    priority_queue<pair<uint64_t, uint64_t>, vector<pair<uint64_t, uint64_t>>, decltype(compare_cost)> q(compare_cost);
    q.emplace(0, 0);
    uint64_t leftover = n, cost = 0;

    while (leftover)
    {
        auto const [x, f] = q.top();
        q.pop();
        cost += min(leftover, 4 * (x + 1)) * (t * x + c[f]);
        leftover -= min(leftover, 4 * (x + 1));
        if (f + 1 < k)
            q.emplace(x, f + 1);
        if (!f)
            q.emplace(x + 1, 0);
    }

    cout << cost << '\n';
}

Subtask #1
90.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 152 ms 16840 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 83 ms 364 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Execution timed out 1087 ms 652 KB Time limit exceeded
8 Correct 291 ms 376 KB Output is correct
9 Correct 170 ms 360 KB Output is correct
10 Correct 0 ms 212 KB Output is correct