Submission #1259730

#	Time	Username	Problem	Language	Result	Execution time	Memory
1259730		vuviet	Cloud Computing (CEOI18_clo)	C++20	100 / 100	361 ms	1352 KiB

clo

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

struct T {
    int c, f;
    long long v;
};

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    int n; cin >> n;
    vector<T> a;
    int maxc = 0;

    for (int i = 0; i < n; i++) {
        T t;
        cin >> t.c >> t.f >> t.v;
        t.v = -t.v;
        a.push_back(t);
        maxc += t.c;
    }

    int m; cin >> m;
    for (int i = 0; i < m; i++) {
        T t;
        cin >> t.c >> t.f >> t.v;
        t.c = -t.c;
        a.push_back(t);
    }

    sort(a.begin(), a.end(), [](const T &x, const T &y) {
        return (x.f != y.f) ? x.f > y.f : x.v < y.v;
    });

    const long long NEG = -4e18;
    vector<long long> dp(maxc + 1, NEG);
    dp[0] = 0;

    for (auto &t : a) {
        int start = (t.c > 0 ? maxc : 0);
        int end = (t.c > 0 ? t.c : maxc + t.c);
        int step = (t.c > 0 ? -1 : 1);

        for (int c = start; (t.c > 0 ? c >= end : c <= end); c += step) {
            int p = c - t.c;
            if (p >= 0 && p <= maxc && dp[p] != NEG) {
                dp[c] = max(dp[c], dp[p] + t.v);
            }
        }
    }

    cout << *max_element(dp.begin(), dp.end()) << "\n";
    return 0;
}

• Subtask 1: 18 / 18
• Subtask 2: 18 / 18
• Subtask 3: 18 / 18
• Subtask 4: 18 / 18
• Subtask 5: 18 / 18
• Subtask 6: 10 / 10