Submission #419589

#	Time	Username	Problem	Language	Result	Execution time	Memory
419589		tengiz05	Election Campaign (JOI15_election_campaign)	C++17	10 / 100	89 ms	10552 KiB

election_campaign

#include <bits/stdc++.h>
int main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
    int n, m;
    std::cin >> n;
    std::vector<std::vector<int>> e(n);
    for (int i = 0; i < n - 1; i++) {
        int u, v;
        std::cin >> u >> v;
        u--;
        v--;
        e[u].push_back(v);
        e[v].push_back(u);
    }
    std::cin >> m;
    std::vector<std::vector<std::pair<int, int>>> q(n + 1);
    for (int i = 0; i < m; i++) {
        int u, v, c;
        std::cin >> u >> v >> c;
        if (u > v) std::swap(u, v);
        q[v].emplace_back(u, c);
    }
    std::vector<int> dp(n + 1);
    for (int i = 1; i <= n; i++) {
        dp[i] = dp[i - 1];
        for (auto [j, c] : q[i]) {
            dp[i] = std::max(dp[i], dp[j - 1] + c);
        }
    }
    std::cout << dp[n] << "\n";
    return 0;
}

• Subtask 1: 0 / 10
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 0 / 30
• Subtask 5: 0 / 10
• Subtask 6: 0 / 40