Laskettelukeskus

#include <cmath>
#include <iostream>
#include <queue>

int main() {
    int rinteet;
    std::cin >> rinteet;

    std::vector<std::pair<int, int>> paths;
    std::vector<std::pair<int, int>> huiput;

    for (int i = 0; i < rinteet-1; ++i) {
        int n1;
        int n2;

        std::cin >> n1 >> n2;

        if (n1 > n2) {
            std::swap(n1, n2);
        }

        paths.push_back(std::pair(n2-1, n1-1));
    }

    for (int i = 0; i < rinteet; ++i) {
        int n;
        std::cin >> n;

        huiput.push_back(std::pair(n, 0));
    }

    for (auto path : paths) {
        int idx = path.second;

        int value = huiput[path.first].first;

        while (huiput[std::abs(idx)].second < 0) {
            value = std::max(value, huiput[std::abs(idx)].first);

            idx = huiput[-(idx)].second;
        }


        huiput[idx].second += value;

        huiput[path.first].second = -idx;
    }

    std::cout << std::max(huiput.front().second, huiput.front().first);
}

Test 1

Group: 1, 2

Verdict: ACCEPTED

Test 2

Group: 1, 2

Verdict: WRONG ANSWER

Test 3

Group: 1, 2

Verdict: TIME LIMIT EXCEEDED

Test 4

Group: 2

Verdict: RUNTIME ERROR

Test 5

Group: 2

Verdict: RUNTIME ERROR

Test 6

Group: 1, 2

Verdict: ACCEPTED

Test 7

Group: 2

Verdict: RUNTIME ERROR

Test 8

Group: 1, 2

Verdict: TIME LIMIT EXCEEDED

Test 9

Group: 2

Verdict: RUNTIME ERROR

Test 10

Group: 1, 2

Verdict: WRONG ANSWER

Test 11

Group: 2

Verdict: RUNTIME ERROR

Test 12

Group: 1, 2

Verdict: WRONG ANSWER

Test 13

Group: 2

Verdict: RUNTIME ERROR